All Questions

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If it's 7:00 now, what time will it be in 1,000 hours?

If it's 7:00 now, what time will it be in 1,000 hours? [Don't worry about a.m. or p.m]
(Answer as a number; so if you think the answer is 3:00, enter 3 below).

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Guest 46 mins ago

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3

0

In one state the license plates have 6 letters so:

In one state the license plates have 6 letters so:
"XRDFGT"
or
"HAPPPY" read more ..

Guest 47 mins ago

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9

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HELP ASAP PLZ!!!!

Prove that if w,z are complex numbers such that |w| = |z| = 1 and wz =/ -1, then w+z / 1+wz is a real number.

Guest 10 hours ago

+1

9

0

+126

NEED HELP!!!!

Two lines l and m intersect at O at an angle of 28˚. Let A be a point inside the acute angle formed by l and m. Let B and C be the reflections of A over lines l and m, respectively. Find the number of degrees in angle BAC.

Confusedperson 11 hours ago

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Let n be a natural number with exactly 2 positive prime divisors. Of n^2 has 27 divisors, how many does n have?

Guest 11 hours ago

+1

8

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+126

PLZZZZ HELP!!!!!

Right triangle ABC has legs measuring 8 cm and 15 cm. The triangle is rotated about one of its legs. What is the number of cubic centimeters in the maximum possible volume of the resulting solid? Express your answer in terms of π.

Confusedperson Jun 24, 2018 2:26:20 AM

+1

10

0

+126

HELP!!!!!

Triangle ABC with vertices A(-2, 0), B(1, 4) and C(-3, 2) is reflected over the y-axis to form triangle A'B'C'. What is the length of a segment drawn from C to C'?

Confusedperson Jun 24, 2018 2:24:43 AM

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12

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geometry

Triangle $ABC$ has vertices $A(0,8)$, $B(2,0)$, $C(8,0)$. A vertical line intersects $AC$ at $R$ and $\overline{BC}$ at $S$, forming triangle $RSC$. If the area of $\triangle RSC$ is 12.5, determine the positive difference of the $x$ and $y$ coordinates read more ..

Guest Jun 24, 2018 2:13:18 AM

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15

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+4

Math help

I need help with sme math problems and i'm hoping to get some help on this website. I will post a couple more problems I need help with in the future.

Lines y=(3a+2)x-2 and 2y=(a-4)x+2 are parallel. What read more ..

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matth99 Jun 24, 2018 2:11:42 AM

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12

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+71

help

The length of the longer side of rectangle R is 10 percent more than the length of a side of square S. The length of the shorter side of rectangle R is 10 percent less than the length of a side of square S. What is the ratio of the area of rectangle R to read more ..

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Firewolf Jun 24, 2018 1:47:41 AM

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Interesting Problem

Please help on this problem:
Two cards are chosen at random from a standard 52-card deck. What is the probability that they are either both hearts or both diamonds?

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Guest Jun 24, 2018 1:35:52 AM

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Geometry Question

In the diagram, PW is parallel to QX, S and T lie on QX, and U and V are the points of intersection of PW with SR and TR, respectively. If angle SUV = 120 degrees and angle VTX = 112 degrees, what is the measure of angle URV?

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Guest Jun 23, 2018 9:52:05 PM

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Geometry Problem

In the circle below, AB is parallel to CD, AD is a diameter of the circle, and AD = 36.What is the length of AB? Express your answer in terms of pi.

read more ..

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Guest Jun 23, 2018 9:04:01 PM

+1

13

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+718

Help with number theory

What is the average of all positive integers that have three digits when written in base 5, but two digits when written in base 8? Write your answer in base 10.

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MIRB16 Jun 23, 2018 7:15:23 PM

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13

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+8

Composite Functions Question, Need Help.

Suppose a ship is sailing at a rate of 20 km/h parellel to a straight shoreline. The ship is 8 km from shore when it passes a lighthouse at 1 pm.

a) Let h be the distance between the lighthouse read more ..

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alfagameel Jun 23, 2018 7:14:26 PM

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Consider the geometric series . If the sum is a perfect square, what is the smallest possible value of where is a positive

Consider the geometric series $4+\frac{12}{a}+\frac{36}{a^2}+\cdots$. If the sum is a perfect square, what is the smallest possible value of where is a positive integer?

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Guest Jun 23, 2018 4:57:11 PM

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Steven has 26 different shirts, 26 different pairs of pants, and 26 different pairs of shoes. How many different outfits can he assemble

Steven has 26 different shirts, 26 different pairs of pants, and 26 different pairs of shoes. How many different outfits can he assemble by choosing one from each category? [As a hint, the answer is more than 10,000]. read more ..

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Guest Jun 23, 2018

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15

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A town has 37,000 inhabitants. If it grows at a rate of 5%/year for 20 years then how many inhabitants will it have?

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Guest Jun 23, 2018

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15

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One question

On the planet Voltron they operate on a 142 hour day, so their clocks have 142 numbers with the number 142 at the very top (just like the 12 is at the top of our clocks). What number is directly opposite 27?

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Guest Jun 23, 2018

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22

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probability

Andy spins a fair spinner numbered 1 - 5 and rolls a fair dice.
What is the probability of obtaining a multiple of 4 and a factor of 15?

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Guest Jun 23, 2018

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21

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+8

Composite Function Problem - Having Trouble Answering This Question someone help ASAP

h(x) f(x) Mileage is a function of time Fuel Consumption is a function of Mileage Consumption is a function of Velocity Cost is a function of Consumption Earnings is a function of Time Interest is a function of Earnings Cost is a function of Consumption read more ..

alfagameel Jun 23, 2018

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21

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help please. I got 220, which is INCORRECT.

A Senate committee has 8 Republicans and 6 Democrats. In how many ways can we form a subcommittee of 5 members that has at least one member from each party?

Alan ●

Guest Jun 23, 2018

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19

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oof stuck

When the greatest common divisor and least common multiple of two integers are multiplied, the product is 180. How many different values could be the greatest common divisor of the two integers?

Guest Jun 23, 2018

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19

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help needed

Let n be a natural number with exactly 2 positive prime divisors. Of n^2 has 27 divisors, how many does n have?

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Guest Jun 23, 2018

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22

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How many paths are there from A to B passing through C, if every step must be up or to the right?

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Guest Jun 23, 2018

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25

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I need help asap due tomorrow

I need help with this question
read more ..

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Guest Jun 22, 2018

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22

1

How many even divisors does $7!$ have?

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Guest Jun 22, 2018

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19

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Help please

An object is moving along a straight line. Its position (in meters) from the starting point at time t (measured in seconds) is described by s(t)=t^3-3t. Answer the following.
Find the position of the object at the time moment when its read more ..

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Guest Jun 22, 2018

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26

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How many positive perfect cube factors does 3^6*5^{10} have?

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Guest Jun 22, 2018

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21

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help me

When the greatest common divisor and least common multiple of two integers are multiplied, the product is 180. How many different values could be the greatest common divisor of the two integers?

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Guest Jun 22, 2018

0

26

1

+175

Super hard Geometry Proof Challenge Question

Hey. I was stumbling through my homework, when I got completely stuck on this problem. Can someone please help me?

Let PA and PC be tangents from P to a circle. Let B and D be points on the circle such that B, D, and P are collinear. read more ..

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Maplesnowy Jun 22, 2018

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24

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+570

im not so good with recursive models

a pendulum initially swings through an arc that is 20 inches long. on each swing, the length of the arc is 0.85 of the previous swing.

a) write a recursive model of geometric decay to represent the sequence of lengths of the arc of read more ..

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OfficialBubbleTanks Jun 22, 2018

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26

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+78

Trig equation

For 0 < x < pi
4*sin2(x) = 4*cos(x) + 5
x = ?

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SurpriseMe Jun 22, 2018

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33

2

Can i get help

CPhill ●●

Guest Jun 22, 2018

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30

2

Help me on this question

I need help

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Guest Jun 22, 2018

0

32

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+126

PLZ HELP!!!!! DUE TOMORROW!!!!!

A right cylindrical tank with circular bases is being filled with water at a rate of 20π cubic meters per hour. As the tank is filled, the water level rises four meters per hour. What is the radius of the tank, in meters? Express your answer in simplest read more ..

heureka ●

Confusedperson Jun 22, 2018

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Plz help. cases included

Our school's girls volleyball team has 14 players, including a set of 3 triplets: Missy, Lauren, and Liz. In how many ways can we choose 6 starters if the only restriction is that not all 3 triplets can be in the starting lineup?

Cases read more ..

Guest Jun 22, 2018

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need help. PLEASE.

John draws a regular five pointed star in the sand, and at each of the 5 outward-pointing points and 5 inward-pointing points he places one of ten different sea shells. How many ways can he place the shells, if reflections and rotations of an arrangement read more ..

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Guest Jun 22, 2018

-1

28

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how does this 6 (4x -3) add 7 (x add 1) equel this 9 show working

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Guest Jun 22, 2018

0

23

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+718

Number theory!

Find an integer x such that and .

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MIRB16 Jun 22, 2018

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24

1

+18

Advanced Quadratic

Find the product of the -coordinates of all the distinct solutions for the two equations and .

I squared the first equation, and then substituted for y^2:
x^4 - 16x^2 + 64 = -5x + 44 --> x^4 - 16x^2 + 5x + 20 = 0 -->read more ..

heureka ●

Toytrain Jun 22, 2018

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21

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+18

Confused

Suppose that are positive integers satisfying , and such that the product of all three numbers is twice their sum. What is the sum of all possible values of .

Toytrain Jun 22, 2018

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21

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Halp plz

A Senate committee has 5 Democrats and 5 Republicans. Assuming all politicians are distinguishable, in how many ways can they sit around a circular table without restrictions? (Two seatings are considered the same if one is a rotation of the other.) read more ..

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Guest Jun 22, 2018

+1

23

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+28

Clock Problem

What is the degree measure of the smaller angle formed by the minute hand and the hour hand of a clock at 3:30?

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hatchet288 Jun 21, 2018

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https://vle.mathswatch.co.uk/images/questions/question2721.png

Answers??

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Guest Jun 21, 2018

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https://vle.mathswatch.co.uk/images/questions/question1008.png

need anwer quick please

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Guest Jun 21, 2018

+1

23

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help please fast

an observer from the ground looks up to the top of a building with an angle of elevation of 24 degrees. If he is standing 400 feet away from the building, how tall is the building? Round to nearest foot.

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Guest Jun 21, 2018

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