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Post New Question
All Questions
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230455 Questions
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196
1
algebra
Find all pairs of real numbers such that x + y = 10 and x^2 + y^2 = 56 + 2xy.
For example, to enter the solutions and , you would enter "(2,4),(-3,9)" (without the quotation marks).
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Guest
Aug 3, 2022
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233
2
Find the circumradius of triangle ABC if AB=BC=29 and AC=40.
Find the circumradius of triangle ABC if AB=BC=29 and AC=40.
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Guest
Aug 3, 2022
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190
1
system problem
Find the ordered pair (s,t) that satisfies the system
s/2 + 5t = 3
3t - 6s = 9 - 5t
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Guest
Aug 3, 2022
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197
1
Octagon
In regular octagon ABCDEFGH, M and N are midpoints of line BC and line FG respectively. Compute [ABMO]/[ABCDEFGH]. ([ABCD] denotes the area of polygon ABCD.)
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Guest
Aug 3, 2022
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200
1
Algebra question
The equation y = -4.9t^2 + 42t + 18.9 describes the height (in meters) of a ball tossed up in the air at 42 meters per second from a height of 18.9 meters from the ground, as a function of time in seconds. In how many seconds will the ball first reach
read more ..
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Guest
Aug 3, 2022
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185
1
Positive Integers
If x and y are positive integers for which 3x + y + xy = 115, then what is x + y?
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Guest
Aug 3, 2022
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177
1
Trapezoid
The consecutive angles of a particular trapezoid form an arithmetic sequence. If the largest angle measures 128 degres, what is the measure of the smallest angle?
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Guest
Aug 3, 2022
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186
1
completing the square
The quadratic ax^2 + bx + c can be expressed in the form 2(x - 8)^2 + 4. When the quadratic 3ax^2 + 2bx + c is expressed in the form n(x - h)^2 + k, what is h?
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Guest
Aug 3, 2022
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192
1
help algebra
If x + 2y= 4 and xy = 8, what is the value of x^2 + 4y^2?
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Guest
Aug 3, 2022
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199
1
Quadratics (graphing)
The parabolas defined by the equations y = x^2 + 4x + 6 and y = 2x^2 + 7x - 4 intersect at points and (a,b) and (c,d), where c >= a. What is c-a?
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Guest
Aug 3, 2022
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182
4
hi, uhh pls help.
1) Find the circumradius of triangle ABC if AB=BC=29 and AC=40.
2) In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
read more ..
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Guest
Aug 3, 2022
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195
1
Algebra
What is the value of $\frac{x^1\cdot x^2\cdot x^3\cdots x^{10}}{x^2\cdot x^4 \cdot x^6 \cdots x^{20}}$ if x = 2?
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Guest
Aug 3, 2022
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191
1
help hard geometry
In rectangle ABCD, [AEP]/[DFP] = 4. Find the ratio of the area of the red region to the area of the yellow region. Enter your answer as a fraction.
read more ..
BuilderBoi
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Guest
Aug 3, 2022
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137
0
geometry problem
A point in a square is connected to the midpoints of its sides, dividing the square into four regions. The areas of three of the regions are labelled. Find the area of the fourth region.
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Guest
Aug 3, 2022
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191
1
sequence
By starting with a million and alternatively dividing by 2 and multiplying by 5, Anisha created a sequence of integers that starts 1000000, 500000, 2500000, 1250000, and so on. What is the tenth term of this sequence?
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Guest
Aug 3, 2022
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172
1
Please Help
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?
There is no picture.
The answer is not 2/5
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Guest
Aug 3, 2022
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182
3
Found some problems, thought it would be fun to try them out!
1) Find the circumradius of triangle ABC if AB=BC=29 and AC=40.
2) In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
3) In triangle ABC let the angle bisectors be BY
read more ..
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Guest
Aug 3, 2022
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198
1
Help
4,331 and 1,052 added to the difference between 459 and half of a number is 5,543. What is the number?
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Guest
Aug 3, 2022
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202
1
Algebra
There are numbers A and B for which A/(x - 1) + B/(x + 1) = (x + 3)/(x^2 - 1) for every number x other than 1 and -1. Find .A - B.
BuilderBoi
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Guest
Aug 3, 2022
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193
1
geometric probability
A point (x, y) is randomly chosen such that 0 ≤ x ≤ 1 and 0 ≤ y ≤ 1. What is the probability that y ≤ 4x?
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Guest
Aug 3, 2022
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207
3
geometry
A square is divided into five rectangles, and all the rectangles have the same area. Given that AB = 1, find the side length of the square.
read more ..
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Guest
Aug 3, 2022
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192
1
Complex numbers
What is the quotient of the complex number 4 - 8i divided by its conjugate?
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Guest
Aug 3, 2022
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200
1
help with algebra
Suppose a, b, c, and d are real numbers which satisfy the system of equations
a + 2b + 3c + 4d = 10
4a + b + 2c + 3d = 4
3a + 4b + c + 2d = -10
read more ..
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Guest
Aug 3, 2022
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216
3
geometry
A square is divided into five rectangles, and all the rectangles have the same area. Given that AB = 1, find the side length of the square.
read more ..
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Guest
Aug 3, 2022
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192
1
help quadratic
Find all values of x such that 6 = 35/x - 49/x^2 + 5/x^2. If you find more than one value, then list your solutions in increasing order, separated by commas.
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Guest
Aug 3, 2022
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