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Post New Question
All Questions
+0
231309 Questions
0
399
1
fractions
a pizza is divided among john, tim and kevin. john received 3/8 and tim received 1/3 of the remainder. what fraction does kevon recieve
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Guest
Dec 3, 2020
0
403
0
+4
education connection
https://educationisaround.com/cross-product-calculator-an-efficient-way/
https://theeducationlife.com/kinematic-formulas/
https://geteducationskills.com/double-integral-calculator/
limeki
Dec 3, 2020
0
560
3
This question I tried quite a lot of times
Let $x$ and $y$ be real numbers such that $2(x^2 + y^2) = x + y.$ Find the maximum value of $x - y.$
my go at it:
First I expanded so I got 2x^2+2y^2=x+y, then I subtracted x and y on both sides resulting 2x^2-x+2y^2-y=0
read more ..
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Guest
Dec 3, 2020
0
1268
1
+4
Pre-Calculus-Trigonometry semester test, help!!!
1. Blake solves the system of equations by forming a matrix equation.
−x+4y=8
2x+3y=−5
He multiplies the left side of the coefficient matrix by the inverse matrix.
read more ..
Alan
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Unknowndragon17
Dec 3, 2020
0
411
1
help needed
Find constants A and B such that
(x + 7)/(x^2 - 4x + 3) = A/(x - 1) + B/(x - 3)
for all x such that x is not equal to 1 and x is not equal to 3. Give your answer as the ordered pair (A,B).
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Guest
Dec 3, 2020
0
512
1
+45
Help plz
A leg length of a right triangle is 22, and the other two sides also have integer lengths. Find the perimiter of the triangle.
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calicokittycat
Dec 3, 2020
0
567
2
Find the area of the quadrilateral
Find the area of the quadrilateral formed with vertices at (1,2) (5,8) (8,6), (4,1)
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Guest
Dec 3, 2020
0
423
1
omg how do you solve this
In concave equilateral pentagon ABCDE, angle A=angle B= 105 degrees. What is the degree measure of E?
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Guest
Dec 3, 2020
0
443
3
alg 1 question
Two parabolas are the graphs of the equations y = 3x^2 + 4x - 5 and y = x^2 + 12. Give all points where they intersect. List the points in order of increasing x-coordinate, separated by semicolons.
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Guest
Dec 3, 2020
0
407
2
help with quadratic!
Find the set of values of k for which this equation has two real roots.
5x^2 + 4k*x + k = 0
thanks in advance lol
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Guest
Dec 3, 2020
0
476
3
Cphill This ones for you
Consider the function $z(x,y)$ describing the paraboloid \[z = (2x - y)^2 - 2y^2 - 3y.\]Archimedes and Brahmagupta are playing a game. Archimedes first chooses $x.$ Afterwards, Brahmagupta chooses $y.$ Archimedes wishes to minimize $z$ while Brahmagupta
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Guest
Dec 3, 2020
0
423
5
geometry problem
In triangle ABC, AB=5, AC=6, and BC=8. Circles are drawn with centers A, B, and C, so that any two circles are externally tangent. Find the sum of the areas of the circles.
read more ..
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Guest
Dec 3, 2020
0
379
1
help algebra
If (ax + b)(bx + a) = 60x^2 + v * x + 60, where a,b , and v are distinct integers, what is the minimum possible value of v, the coefficient of x?
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Guest
Dec 3, 2020
0
1304
1
+296
What is the exact value of the trigonometric function?
Select True or False for each statement.
CalTheGreat
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lovesosa12
Dec 3, 2020
0
1786
1
+296
What coordinates on the unit circle are associated with the angle measure?
Drag coordinates into each box to match the angle measure.
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lovesosa12
Dec 3, 2020
0
310
1
Geometry
If RST lengths are Square root 5 Square root 13 and 4 what is the height of RST?
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Guest
Dec 3, 2020
0
463
1
+79
Find a polynomial p(x) that has more zeros that its degree.
Find a polynomial p(x) that has more zeros that its degree.
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LovelyRock
Dec 3, 2020
0
408
1
quadratic
The quadratic -6x^2+72x+216 can be written in the form a(x+b)^2+c, where a, b, and c are constants. What is a+b+c?
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Guest
Dec 3, 2020
0
387
0
+79
Find all θ with −π ≤ θ ≤ π satisfying the equation below.
Find all θ with −π ≤ θ ≤ π satisfying the equation below.
√ 4 cos(θ) · cos2 (θ) + √ 4 sin2 (θ) · cos(θ) = √ 2
LovelyRock
Dec 3, 2020
0
436
1
+79
Help please
Suppose tan(θ) = − √ 3 and 0 ≤ θ ≤ π. What is the value of cos(θ)?
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LovelyRock
Dec 3, 2020
+2
490
1
+479
help sob
How many times is the sum of two fractions bigger than their difference, if one of the fractions is percent of the other?
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HelpBot
Dec 3, 2020
0
440
1
number theory
If n^2 has 27 divisors, what is the smallest possible value of n?
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Guest
Dec 3, 2020
+1
722
4
+7
Geometry, urgent, need some help pls
D is on side AC of 4ABC. We know [ABC] = 120, AD = 8, DC = 4. What is [ABD]?
In the diagram, 4ABC ∼ 4ACD. If AD = 12 and DB = 15, what is AC?
O is the circumcenter of 4ABC. If OB = OC = BC, what is ∠BAC?
In the diagram, ∠ABC
read more ..
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gomgu111
Dec 3, 2020
0
333
1
Trapezoid ABCD
Trapezoid ABCD has vertices A(-1,0), B(0,5), C(m,3) and D(k,0), with m > 0 and k > 0. The line y = -x + 4 is perpendicular to the line containing side CD, and the area of trapezoid is 34 square units. What is the value of k?
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Guest
Dec 3, 2020
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