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392

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Squares are repeatedly inscribed at an angle of 45∘ within other squares. The result of the first six steps of this process is shown below.
If this process is performed infinitely many times, what would the area shaded blue be, as a fraction read more ..

Guest Dec 30, 2019

371

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If x and y are complex numbers such that 1/x + 1/y = 1/(x + y), then find all possible values of x/y.

Guest Dec 30, 2019

-1

848

+152

Another problem thanks...

The height (in meters) of a shot cannonball follows a trajectory given by at time (in seconds). As an improper fraction, for how long is the cannonball above a height of meters?

thanks a lot read more ..

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EvanWei123 Dec 30, 2019

977

+152

Help with PARABOLA PROBLEM ASAP Thanks a lot :D

Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (1,1). Express your answer in the form "ax^2+bx+c". Thanks!

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EvanWei123 Dec 30, 2019

710

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There is a doughnut store that offers six kinds of doughnuts: Vanilla, Chocolate, Blueberry, Strawberry, Lemon, and Peach. The Super Special is a dozen doughnuts of your choice, mixed or matched however you like. The order read more ..

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Guest Dec 30, 2019

433

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How many positive integers less than 100 have a corresponding integer divisible by 3 such that the roots of are consecutive positive integers?

Guest Dec 30, 2019

796

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ABCDE is a regular pentagon. On the outside of AB, we construct a square ABFG. What is the measure, in degrees, of angle EAG?

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Guest Dec 30, 2019

418

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in how many ways can we distribute 6 pieces of identical candy to 5 kids, if the two youngest kids are twins and insist on receiving an equal number of pieces?

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Guest Dec 30, 2019

530

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i have 8 pieces of lemon candy and 7 pieces of watermelon candy. in how many ways can i distribute this candy to four students

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Guest Dec 30, 2019

463

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Let n and k be positive integers such that and

Enter the ordered pair (n,k)

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Guest Dec 30, 2019

481

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A regular octagon is placed in a unit circle such that each vertex lies on the circumference of the circle.
Find the perimeter of the octagon.

read more ..

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Guest Dec 30, 2019

679

+296

Precalc

Find the only real number that can be expressed in the form

where , and and are positive integers. read more ..

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EpicWater Dec 30, 2019

682

+21

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Solve for x.

Atroshus ●

SunriseReprise Dec 30, 2019

646

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Find the area of the circle if the side length of square is 10.

CalculatorUser ●●●

Guest Dec 30, 2019

813

+21

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Suppose that the graph of 2x^2+y^2+8x-10y+c=0 consists of a single point. (In this case, we call the graph a degenerate ellipse.) Find c

Atroshus ●●

SunriseReprise Dec 30, 2019

1171

+261

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A state had three letters followed by three digits as the format for license plates. In order to increase the number of plates available, the state changed the format to four letters followed by two digits. What is the positive difference between the number read more ..

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atlas9 Dec 30, 2019

674

+261

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first of all happy holidays :))
Let
Compute

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atlas9 Dec 30, 2019

845

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Find the area of the blue shaded region in this 14 by 7 rectangle, with two semicircles of radius 7 drawn.

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Guest Dec 30, 2019

719

+98

qweschun

Let F1 and F2 be the foci of the ellipse kx^2+y^2=1 where k>1 is a constant. Suppose that there is a circle which passes through F1 and F2 and which lies tangent to the ellipse at two points on the x axis. Compute k

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Atroshus Dec 30, 2019

333

help

If at 4am there is a robbery in police man's house and the thief ran at a speed of 40 kph . the police man get to know about it at 7am and started running towards him at the speed of 50 kph with his dog which is running with a speed of 60 kph. the movement read more ..

Guest Dec 30, 2019

Dec 29, 2019

643

help

Compute using Pascals Identity.

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Guest Dec 29, 2019

1516

+382

Does anyone know if rulers and protractors are allowed in AMC 10?

off-topic

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hellospeedmind Dec 29, 2019

362

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Find the positive integer n for which 3^9+3^12+3^15+3^n is a perfect cube of an integer.

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Guest Dec 29, 2019

862

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Find the smallest number that is made up of each of the digits 1 through 9 exactly once and is divisible by 99.

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Guest Dec 29, 2019

All Questions ⁺⁰230688 Questions

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Another problem thanks...

Help with PARABOLA PROBLEM ASAP Thanks a lot :D

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help

help

help

help

help

help

Precalc

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help

help

help

help

help

qweschun

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help

Does anyone know if rulers and protractors are allowed in AMC 10?

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help

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