All Questions +0 155632 Questions

A kite is flying 77ft off the ground, and its string is pulled taut. The angle of elevation of the kite is 40°. Find the length of the string. Round your answer to the nearest tenth. please help

Guest 5 hours ago

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Solve the system, or show that it has no solution. (If there is no solution, enter NO SOLUTION. If there are an infinite number of solutions, enter the general solution in terms of x, where x is any real number.)

2/3x+1/4y=3
-1/3x-5/4y=3 read more ..

thrashrafa 7 hours ago

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Pre Calc

Solve the system, or show that it has no solution. (If there is no solution, enter NO SOLUTION. If there are an infinite number of solutions, enter the general solution in terms of x, where x is any real number.)

6x + 4y = 16 read more ..

mharrigan920 7 hours ago

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Pre Calc help

If 2x+7 is a factor of 6x^3+19x^2+cx+35, find c.

mharrigan920 7 hours ago

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If the length of a circumradius of regular octagon ABCDEFGH is 4, the area of the quadrilateral determined by lines AB, CD, EF, and GH is k (2 + sqrt(2)). FInd k.

Guest 8 hours ago

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A pair of twin primes if a pair of primes that are consecutive odd integers. Find the largest integer that is a divisor of the sum of the two elements in every pair of twin primes, if these two elements are each primes greater than 3.

If a square and a regular hexagon have equal areas, then find the ratio of their perimeters.

Guest 8 hours ago

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Half the perimeter of a rectangle exceed the length of one of its diagonals by one-third the length of the longer side. Find the tangent of the angle formed by its longer side and one of its diagonals.

Guest 8 hours ago

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In base x, 1/5 and are numerals for the same number. Find x.

Guest 9 hours ago

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Find all solutions of x(x^3 - 1) - 6(x^2 + x + 1) = 0.

To what interval I must we restrict the parameter t if the graph of the parametric equations for is identical to the graph of the parametric equations for ?

Guest 9 hours ago

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Please help (Pre calc)

I know that the y-value is -1 after applying these transformations, so it must be either A or B, but what would the x-value be? I can seem to get 0 neither read more ..

Guest 9 hours ago

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Finding the x value after the following transformations?

Guest 9 hours ago

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math

Which graph represents the function?

https://prnt.sc/q82ur9 read more ..

ElectricPavlov ●

Guest 10 hours ago

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Two jugs each have a capacity of x gallons. One is filled with wine and the other is filled with water. Two gallons are taken from each jug and are then transferred into the other, after which each jug has its contents thoroughly mixed. read more ..

Guest 10 hours ago

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Find the sum of the infinite series 2/1 + 1/3 + 2/9 + 1/27 + 2/81 + 1/243 + ...

Find the value of tan x is sin(x) + cos(x) = 1/5 and pi/2 < x < pi.

Guest 10 hours ago

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Guest 11 hours ago

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Homework help!

Hi everyone! Can anyone help me with this question?

When x^3 + 30x - c is divided by x - 5 the remainder is 5. What is c?
read more ..

The terms of the sequence a_n are 2, 5, 10, 17, 26, 37. . The product of the 97th term and 98th term is the nth term. Find n.

genevieve.cowl Dec 9, 2019, 12:10 AM

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RandomPerson ●

Guest Dec 9, 2019, 12:00 AM

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Geometry Math Question HELP!!!

ABCD is a parallelogram such that Diagonals and intersect at and Find the measure of in degrees.

~~~Thanks~~~

Find the sum of all the two digit numbers which can be expressed as an integral multiple of the product of their digits.

RandomPerson Dec 8, 2019, 11:59 PM

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What's the largest 5-digit number that is a multiple of both 4 and 9?

Guest Dec 8, 2019, 11:59 PM

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HELP

m=A(r12)(1+r12)n(1+r12)n - 1
how do I apply this in to a 3 year loan

notsmart2.0 Dec 8, 2019, 10:52 PM

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m=A(r12)(1+r12)n(1+r12)n - 1 how do I apply this in to a 3 year loan

Solve log(log(log(log(x)))) = 0. (Every logarithm is in base 10.)

Guest Dec 8, 2019, 9:57:59 PM

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The length of a radius of a circle is 3 + 2*sqrt(3). Three congruent circles are drawn in the interior of the original circle, each internally tangent to the original circle and externally tangent to the others. Find the length of a radius of read more ..

Guest Dec 8, 2019, 9:48:06 PM

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Find the positive integer whose cube exceeds its square by 4624.

Guest Dec 8, 2019, 9:47:41 PM

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Let x, y, z be positive integers such that . Find the smallest possible value of z.

Guest Dec 8, 2019, 9:46:35 PM

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Find the maximum area of a triangle in which the length of one side is 6 and the sum of the lengths of the other two sides is 10.

Guest Dec 8, 2019, 8:47:08 PM

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Solve for real numbers x, y, z:
x + yz = 6,
y + xz = 6,
z + xy = 6. read more ..

Guest Dec 8, 2019, 8:44:45 PM

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In trianlge ABC, AB = 3, AC = 5, and BC = 7. M is the midpoint of BC. Find the length AM.

bigmac Dec 8, 2019, 8:15:22 PM

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In trianlge ABC, AB = 3, AC = 5, and BC = 7. Find the circumradius of triangle ABC.

bigmac Dec 8, 2019, 7:41:19 PM

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In trianlge ABC, AB = 3, AC = 5, and BC = 7. Find the inradius of triangle ABC.

bigmac Dec 8, 2019, 7:40:43 PM

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+33

help

bigmac Dec 8, 2019, 7:40:26 PM

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In triangle ABC, D is the point on BC for which AD bisects median BE. Find BD:DC.

Guest Dec 8, 2019, 7:18:21 PM

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In acute triangle ABC, AC = 14 and the length of the alttiude from B is 12. A square has two of its vertices on AC, and its other two vertices on AB and BC, respectively. Find the side length of this square.

Guest Dec 8, 2019, 7:17:36 PM

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If tan(pi/4 + x) = A sec 2x + B tan 2x is an identity for all real values of x for which both sides of the equation are defined, find (A,B).

Guest Dec 8, 2019, 7:15:36 PM

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In triangle $DEF$, we have $DE = DF = 13$ and $EF = 10$. Let $M$ be the midpoint of $\overline{DE}$ and $N$ be on $\overline{EF}$ such that

In triangle $DEF$, we have $DE = DF = 13$ and $EF = 10$. Let $M$ be the midpoint of $\overline{DE}$ and $N$ be on $\overline{EF}$ such that $\overline{DN}$ is an altitude of triangle $DEF$. If $\overline{DN}$ and $\overline{FM}$ intersect at $X$, then what read more ..

The parabola that is the graph of the equation y = ax^2 + bx + c passes through (-1,-11), (1,1), and (2,4). Find the coordinates of the vertex of this parabola.

Guest Dec 8, 2019, 7:07:40 PM

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Guest Dec 8, 2019, 6:59:06 PM

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In the sequence 6, x, y, 16, the first three terms form an arithmetic sequence, and the last three terms form a geometric sequence. Find x and y.

In triangle ABC, AB = 5, BC = 6, and AC = 7. Point P on AB, Q on BC, and R on AC are located so that AP = 2, BQ = 2, and CR = 3. Find the ratio of the area of triangle PQR, so the area of trianlge ABC.

Guest Dec 8, 2019, 6:58:35 PM

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Guest Dec 8, 2019, 6:57:55 PM

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plot algebra

Im not sure about this one

read more ..

I did the plot diagram but i still couldnt figure out what the answer could be? My best guess was 8.38 but I could be wrong.

read more ..

cerenetie Dec 8, 2019, 6:57:01 PM

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+633

data plot help

cerenetie Dec 8, 2019, 6:52:59 PM

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I need help PLS

What is 6x + 7 = 11x -13 in Algebra?

Find all ordered triples of real numbers (x,y,z) that satisfy
yz + zx = 13,
xz + xy = 25,
zxy + yz = 20. read more ..

Guest Dec 8, 2019, 6:21:25 PM

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Guest Dec 8, 2019, 5:21:33 PM

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If sin x + cos x = -1/5, and 3/4*pi <= x <= pi, then find cos 2x.

Find all real values of x that satisfy (16x^2 - 9)^3 + (9x^2 - 16)^3 = (25x^2 - 25)^3.

Guest Dec 8, 2019, 5:20:40 PM

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What is the remainder when the sum of this sequence is divided by 170? Thank you.
1 + 2^3 + 3^2 + 4^5 + 5^4 + 6^7 + 7^6 +.....+ 99^100 + 100^99

Guest Dec 8, 2019, 5:20:01 PM

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Mod math help

A rectangular sheet of paper, ABCD, is folded and creased so that AD lies long DC. The crease formed determined a point E on AB, and it is found that E is the trisection point of AB nearer B. Find EC:BC.

Guest Dec 8, 2019, 5:18:27 PM

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Guest Dec 8, 2019, 5:00:28 PM

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The squares of three positive integers are in arithmetic progression, and the third integer is 12 more than the first. Find the three integers.

The altitude and the median from vertex A of triangle ABC are 4 and 5 units long, respectively. The anlge determined by AB and the median is bisected by the altitude. Find AC.

Guest Dec 8, 2019, 4:59:30 PM

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Guest Dec 8, 2019, 4:58:59 PM

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Let ABC be a triangle with centroid G. Points L, M, and N are the midpoints of sides BC, CA, and AB respectively. Let D be the foot of the altitude from A to BC and let K be the foot of the altitude from L to MN.
(a) Show that read more ..

Points M, N, and P are the midpoints of sides TU, US, and ST of triangle STU, respectively, and UZ is an altitude of the triangle. If and TSU=71, angle STU=39, and , angle TUS=70 then what is angle NZM+ angle NPM in read more ..

Guest Dec 8, 2019, 4:53:20 PM

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Help

if a mass of 500kg lifted through a height of 2 meters what is the work done

Guest Dec 8, 2019, 4:22:19 PM

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help please

A lattice point in the x,y-plane is a point both of whose coordinates are integers (not necessarily positive). How many lattice points lie on the graph of the equation x^2-y^2=47

Guest Dec 8, 2019, 3:03:41 PM

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Help

In the rectangular coordinate system, find the area of the region bounded by the graph of |x - 3| + |y - 1| = 2.

Guest Dec 8, 2019, 2:39:21 PM

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Compute the value of the expression

Guest Dec 8, 2019, 1:53:27 PM

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In an arithmetic progression whose nth term is a_n, a_1 = 6, a_2 = 8, and a_3 = 10. A second sequence, whose nth term is b_n, has b_1 = 3, and for n > 1, b_n = b_{n - 1} + a_{n - 1}. Write an equation expressing b_n explicitly in terms of read more ..

Guest Dec 8, 2019, 1:52:49 PM

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Find a polynomial q(x) such that (x+1)^3+x^2*q(x) has degree less than 2.

bigmac Dec 8, 2019, 1:51:18 PM

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PLz help im stuck

Every time I use a piece of scrap paper, I crumple it up and try to shoot it inside the recycling bin across the room. I'm pretty good at it: If I shoot 5 pieces of paper at the recycling bin, at least one of them will make it inside the recycling bin with read more ..

Guest Dec 8, 2019

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need probability help fast!

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Guest Dec 8, 2019

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help

Let AB be a leg of the right triangle of least perimeter whose sides have integral lengths, whose hypotenuse is one unit longer than AB, and in which AB > 100. Find AB.

Find all ordered triples of real numbers (x,y,z) that satisfy

sqrt(x - y + z) = sqrt(x) - sqrt(y) + sqrt(z)
x + y + z = 8 read more ..

bigmac Dec 8, 2019

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help

The points A(-1,4) and B(2,-3) are in rectangular coordinate system. Piont C is on AB with AC:CB = 3:4. Find the coordinates of C.

bigmac Dec 8, 2019

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help

In a triangle, the lengths of the three medians are 9, 12, and 15. Find the length of the side to whcih the longest median is drawn.

Guest Dec 8, 2019

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An integer is represented by a two-digit base ten numeral. If three times the sum of its digits is added to the integer, the reuslt is the original integer with digits reversed. Finall such positive integers.

Guest Dec 8, 2019

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In rectangle ABCD, AB = 6 and BC = 8. Equilateral triangles ADE and DCF are drawn on the exterior of the rectangle. FInd the area of triangle BEF.

Guest Dec 8, 2019

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Guest Dec 8, 2019

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Let a, b, and c be positive integers such that a is the cube of an integer, c = b + 1, and a^2 + b^2 = c^2. Find the least possible value of c.

In base fifty, the integer x is represented by the numeral CC and x^3 is represented by the numeral ABBA. If C > 0, express all possible value of B in base ten.

Guest Dec 8, 2019

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Guest Dec 8, 2019

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help!

Find all solutions of the equation |x^2-20x-1|=20.
i don't want the answer, but what am i supposed to do with the absolute value?

In square ABCD, AD is four centimeters, and M is the midpoint of CD. Let O be the intersection of AC and BM. What is the ratio of OC to OA? Express your answer as a common fraction.

Work:
... read more ..

atlas9 Dec 8, 2019

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+1761

Square-mania

In triangle ABC, C is 60 degrees and angle A is greater than angle B. The bisector of angle C intersects AB at E. If CE is equal to the geometric mean of AE and EB, then find AE/AC.

tommarvoloriddle Dec 8, 2019

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Guest Dec 8, 2019

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Find the sum of the infinite series of whose nth term is 7^{n - 1}/10^n.

In the five-digit base ten numeral ABCDE, different letters do not necessasrily represent different digits. If this numeral is the fourth power of an integer and if A + C + E = B + D, find the digit C.

Guest Dec 8, 2019

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A piece of paper in the shape of an equilateral triangle ABC has AB = 15. When A is folded over to the point D on BC for which BD = 3, a crease is formed along a line that joins a point on AB to a point on AC. Find the length of this crease. read more ..

Guest Dec 8, 2019

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Find all ordered pairs of real nubmers (a,b) for which 3*sqrt(x - 2y) + 3/sqrt(x - 2y) = 10 and x = ay + b.

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Guest Dec 8, 2019

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If a is not equal to 0, and if x + y = a and x^3 + y^3 = b, write an equation expressing x^2 + y^2 explicitly in terms of a and b.

Sherry had 7/8 of a cup of sugar in her kitchen, and then she used 1/2 of a cup of sugar to make sweet tea. She used what fraction of her sugar to make sweet tea?

Guest Dec 8, 2019

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PLEASE HELP!

x + 8 - 4(x-1) = 2x + 3 solve for x and round to the nearest tenth.

Guest Dec 8, 2019

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Solve for x

A unit fraction is a fraction of the form 1/n, where n is an integer greater than 1. Find the two largest unit fractions, each of which is the square of a rational number, whose sum is also the square of a rational number.

Guest Dec 8, 2019

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Guest Dec 8, 2019

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Two men, A and B, start at the same point, walk in opposite directions, and reach their respective destinations, X and Y, each in one hour. Had they exchanged destinations from the start, A would have arrived at Y 35 minutes after B would have arrived read more ..

The coordinates of the vertices of pentagon ABCDE are A(0,0), B(11,0), C(11,2), D(6,2), and E(0,8). The line whose equation is x = k partitions this pentagonal region into two regions of equal real. Find k.

Guest Dec 8, 2019

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Guest Dec 8, 2019

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+878

EUCLIDEAN ALORTHM?

Help! What is the Greatest Common Factor of 12x and 3x^2+6x?

I've been stuck on this one for a while, I just don't know what to do with all of this info :(
Given , denote by the inverse of . That is, is the residue for which . Sadie wonders if is always congruent read more ..

ant101 Dec 8, 2019

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help with mod inverses

The surface area of a sphere with the radius r is 4 pi r^2. Including the area of its circular base, what is the total surface area of a hemisphere with the radius 6 cm? Express your answer in terms of pi.

Work/confusion: read more ..

Guest Dec 8, 2019

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Spheres! Yay?

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tommarvoloriddle Dec 7, 2019

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Cells Per Person

Estimate the number of cells in a(n) 74-kilogram (163-pound) person, assuming the human body is 100% water (actually it is 60-70% water) and that 1 liter of water weighs 1 kilogram. cells per person

What is the measure of the acute angle of a rhombus with side of length equal to the geometric mean of its diagonals?
A) 15° B) 30° read more ..

Guest Dec 7, 2019

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What is the measure of the acute angle of a rhombus with side of length equal to the geometric mean of its diagonals?

Guest Dec 7, 2019

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Please Help with this problem

Altitudes AD and BE of acute triangle ABC intersect at point H . If AHB=123 and BAH=26, then what is HCA in degrees?

https://imgur.com/gallery/Wzw2uTm

Suppose g(x) is a polynomial of degree five for which g(1) = 2, g(2) = 3, g(3) = 4, g(4) = 5, g(5) = 6, and g(6) = -113. Find g(0).

Guest Dec 7, 2019

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i dont know how to do this

If all the angles in the figure shown are right angles, what is the perimeter of the figure?

https://ibb.co/YLhzt8x
^^^^^ Picture for the question

Is the answer 10+12+10+12+7+7+6=20+24+14+6 read more ..

Guest Dec 7, 2019

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GEOMETRY

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tommarvoloriddle Dec 7, 2019

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help

The length of each side of triangle ABC is 6. If X is the trisection point of CA nearer C and if median AM intersect BX at U, then find MU.

Guest Dec 7, 2019

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A sequence is defined by a_1 = 1, a_2 = 3, a_3 = 5, and a_n = a_{n - 1} + a_{n - 2} - a_{n - 3} for n > 3. Find the sum of the first 30 terms of the sequence.

Suppose that a 30-digit integer N is composed of thirteen 7s and seventeen 3s. What is the remainder when N is divided by 36?

Guest Dec 7, 2019

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help s'il te plait et merci

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Guest Dec 7, 2019

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help

If x^3 + 1/x^3 + 110, then find x + 1/x.

If the lengths of the bases of a trapezoid inscribed in a circle are 10 and 20, and the length of one of the legs is sqrt(89), find the length of one diagonal.

Guest Dec 7, 2019

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Guest Dec 7, 2019

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If a, b, and c are different numbers and if a^3 + 3a + 14 = 0, b^3 + 3b + 14 = 0, and c^3 + 3c + 14 = 0, find the value of 1/a + 1/b + 1/c.

If a,b,c are integers from the set of positive integers less than 7 such that

then what is the remainder when a+b+c is divided by 7?

Guest Dec 7, 2019

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Find the remainder when the polynomial x^1000 is divided by the polynomial (x^2 + 1)(x + 1).

Thanks for your time! read more ..

Guest Dec 7, 2019

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help

Every time I use a piece of scrap paper, I crumple it up and try to shoot it inside the recycling bin across the room. I'm pretty good at it: If I shoot 5 pieces of paper at the recycling bin, at least one of them will make it inside the recycling bin with read more ..

Guest Dec 7, 2019

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probability problem

A train, x meters long, traveling at a constant speed, takes 20 seconds from the time it first enters a tunnel 300 meters long until the time it completely emerges from the tunnel. One of the stationary ceiling lights in the tunnel is directly above read more ..

Guest Dec 7, 2019

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The roots of x^3 + 2px^2 - px + 10 = 0 are integral and form an arithmetic progression. Find p.

Guest Dec 7, 2019

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Guest Dec 7, 2019

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The lengths of the sides of a triangle are 6, 8, and 10. Find the area of the larger of the two triangles into which the bisector of the larger acute angle partitions the original triangle.

Guest Dec 7, 2019

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help

Some people agree to share in the cost of buying a boat. If ten of them later decide not to buy in, each of those remaining would have to chip in one dollar more. If the sole payment actually occurs after an additional fifteen people drop out, read more ..

Find all positive real values of x that satisfy

Guest Dec 7, 2019

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Guest Dec 7, 2019

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Solve |x| + 3 - |x + 3| = 6.

The ratio of the width of a rectangle to its length equals the ratio of its length to half its perimeter. If the area of the rectangle is 50 (sqrt(5) - 1) and the width of the rectangle is k (sqrt(5) - 1), compute the value of k.

Guest Dec 7, 2019

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help

If a > 0, b > 0, and
then write a equation epxressing a in terms of b.

Guest Dec 7, 2019

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help

Guest Dec 7, 2019

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Find the value of the infinite continued fraction

Solve the inequality 5/3*t + 2 < -7t + 8.

Guest Dec 7, 2019

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help

Given that x and y are real numbers such that 5x + 2y >= 10 and x + 3y >= 6, find the minimum value of x + y. Show all your steps!

Guest Dec 7, 2019

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Guest Dec 7, 2019

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The length of each side of square ABCD is 12. Points E, F, G, and H are the trisection points of AB, BC, CD, and DA, nearer A, B, C, and D, respectively. Find the area of the region bounded by AG, BG, CH, and DE.

Guest Dec 7, 2019

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help

A factory manufactures doodads and whirligigs. It costs $2 and takes 3 hours to produce a doodad. It costs $4 and takes 2 hours to produce a whirligig. The factory has $220 and 150 hours this week to produce these products. If each doodad sells for $6 and read more ..

Guest Dec 7, 2019

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help

Find the linear inequality that corresponds to the following graph.

Solve the inequality 8x - 3 < 2x + 4.

Guest Dec 7, 2019

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Guest Dec 7, 2019

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francais

aaaaa help moi plasir

a) Let $\mathcal{R}$ be the region consisting of the points $(x,y)$ that satisfy \[-6 \le 3x - 5y \le 6\]and \[-3 \le x + 2y \le 3.\]Plot the region $\mathcal{R},$ and identify the vertices of polygon $\mathcal{R}.$
(b) Find the maximum value of read more ..

Guest Dec 7, 2019

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help

a) Let $\mathcal{R}$ be the region consisting of the points $(x,y)$ that satisfy \[-6 \le 3x - 5y \le 6\]and \[-3 \le x + 2y \le 3.\]Plot the region $\mathcal{R},$ and identify the vertices of polygon $\mathcal{R}.$ (
b) Find the maximum value of read more ..

Guest Dec 7, 2019

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plz help

Guest Dec 7, 2019

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help

The ratio of the four sides of a trapezoid is 2:1:1:1. The area of the trapezoid is 27*sqrt3 Find the length of the median of the trapezoid.

Find all real numbers $t$ such that $\frac{2}{3} t - 1 < t + 7 \le -2t + 15$.
Give your answer as an interval.

Guest Dec 7, 2019

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help

Guest Dec 7, 2019

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ABCD is a regular tetrahedron (right pyramid whose faces are all equilateral triangles). If M is the midpoint of CD, then what is cos ABM?

سته و اربعه على سالب ثلاثة يساوي كم

Guest Dec 7, 2019

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سؤال

If tan⁡〖θ=8/15〗 and π≤θ≤3π/2, find the values of the other 5 trig functions.

Guest Dec 7, 2019

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Trigonometry

I have a collection of sixteen cards. Each card is rose, amber, emerald, or liberty (a shade of blue) . Also, each card is labelled A, B, C, or D. There is a card for each color-letter combination, e.g. there is an amber card that has a B on it.
These read more ..

subarashiib Dec 7, 2019

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need help

The graph of x^2/a^2 + y^2/b^2 = 1 has its foci at (0, +/- 4), while the graph of x^2/a^2 - y^2/b^2 =1 has foci at (+/-6, 0). Compute the value |ab|.

I have just put it into Latex to make it easier to read. - Melody. read more ..

Guest Dec 7, 2019

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help

Given that f(x) = x^k where k < 0, what is the range of f(x) on the interval [1, ∞)? Please explain, I want to understand how the answer is gotten. Thank you

Guest Dec 7, 2019

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Algebra 2 Repost Since the First One was Off-Topic

Hey guys I'm back and my tornado of a life needs some help.

Most of you guys have no idea what I'm talking about. I need help from people who have experience in aeronautics.
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EpicWater Dec 7, 2019

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An all-nighter before the science competition

Given that f(x) = x^k where k < 0, what is the range of f(x) on the interval [1, ∞)?

(Sorry, I accidentally published it to be off topic.)

CalculatorUser Dec 7, 2019

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An Algebra 2 Functions Question I'm Stumped on.

2 Questions
Q1

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EpicWater Dec 7, 2019

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Exponential to Logarithmic Functions

Guest Dec 6, 2019

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Lewis carroll conundrum question

In figure 1 the area of the square is 64 square units. In figure 2 the shapes are rearranged to form a rectangle ith an area of 65 square units. How do you justify the extra one squre unit?

Just one question and 1 check answer!

Q1
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xxJenny1213xx Dec 6, 2019

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Conic Sections

Lola bought 4.25 yards of ribbon. The ribbon cost $1.79 per yard. What was the total cost of her ribbon?

Guest Dec 6, 2019

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i am confused

The general form of a parabola is x^2−6x−2y+7=0 .
What is the standard form of this parabola?
Enter your answer by filling in the boxes.
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Guest Dec 6, 2019

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help!!