All Questions ⁺⁰237827 Questions

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244

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Algebra

Find all solutions (including solutions that are not real) to z^3 + 8 = z^2 + 4.

Guest Oct 17, 2022

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190

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counting

In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A
RRR read more ..

Guest Oct 17, 2022

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229

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Algebra

Pearl writes down seven consecutive integers and adds them up. The sum of the integers is equal to 7 times the largest of the seven integers. What is the smallest integer that Pearl wrote down?

Guest Oct 17, 2022

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283

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+660

Pls help me!

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 30 miles per hour instead, then I would have arrived 25 minutes later. How many miles did I drive?

Keihaku Oct 17, 2022

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197

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counting

How many ways are there to put 4 balls in 3 boxes if the balls are not distinguishable and the boxes are not distinguishable?

Guest Oct 17, 2022

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187

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graphing question

The region between the graph of y=f(x) and the x-axis, shaded in this figure, has an area of 10 square units. What is the area between the graph of y=2f(x-12) and the x-axis?

Guest Oct 17, 2022

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229

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geometry

In triangle ABC let the angle bisectors be segment BY and CZ . Given AB = 8, AY = 6, and CY = 4, find BZ.

Guest Oct 17, 2022

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199

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help

solve for V. s=1/2 a^2v+c
A.V=s+c/2a^2
B.V=s-c/2a^2
C.V=2(s+c)/a^2 read more ..

Guest Oct 17, 2022

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238

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Probability

Two integers are selected from the first 1024 positive integral perfect squares. What is the probability that both of these numbers are sixth powers of integers?

Guest Oct 17, 2022

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218

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please help

Alice and Bob each have a certain amount of money. If Alice receives n dollars from Bob, then she will have 8 times as much money as Bob. If, on the other hand, she gives n dollars to Bob, then she will have 2 times as much money as Bob. If neither gives read more ..

Guest Oct 17, 2022

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244

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Base numbers

What is the remainder when the base-12 integer 20130118_{12} is divided by 18? Write your answer in base 10.

Guest Oct 17, 2022

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193

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Complex numbers

What is the area of the region of the complex plane defined by |z| < 5 + |z - 5|?

Guest Oct 17, 2022

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237

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⦁ A box contains 8 red shirts, 13 blue shirts, 5 red pants, and 9 blue pants. Determine the probability of randomly selecting a blue piece

⦁ A box contains 8 red shirts, 13 blue shirts, 5 red pants, and 9 blue pants. Determine the probability of randomly selecting a blue piece of clothing or pants. Use P ( A or B ) = P ( B ) + P ( B ) - P ( A and B ) to explain your read more ..

Guest Oct 17, 2022

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220

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geometry

In triangle ABC, AB = AC. Find angle ABC.

Guest Oct 17, 2022

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218

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help geometry

In triangle ABC, [ADE] = 4, [ABE] = 14, and [CDE] = 8. Compute [BCE].

Guest Oct 17, 2022

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229

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geometry

Points M, N, and O are the midpoints of sides KL, LJ, and JK respectively of triangle JKL. Points P, Q, and R are the midpoints of segments NO, OM, and MN respectively. If they are of triangle PQR is 27, then what is the area of triangle LNQ? read more ..

Guest Oct 17, 2022

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246

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Algebra

Let y = (x-3)/(x+7) + 1/3
Then this equation can be expressed in the form (x + a)(y + b) = c for some constants a, b, and c . Enter your answer in the form " a, b, c".

Guest Oct 17, 2022

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313

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need help with algebra

Find 1/(a - 1) + 1/(b - 1) where a and b are the roots of the quadratic equation 2x^2-7x+2 = x^2-11x+1.

Guest Oct 17, 2022

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245

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help triangles

Triangle ABC is a right triangle with angle BAC = 90 degrees and angle B is greater than angle C. Suppose segment AP is an altitude of the triangle, segment AQ is an angle bisector of the triangle, and segment AR is a median of the triangle, and angle read more ..

Guest Oct 17, 2022

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254

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+275

Probability

An unfair coin has the property that when flipped 4 times, the probability of flipping exactly two heads is the same as the probability of flipping exactly three heads, and this probability is not zero. If this coin is flipped once, what is the probability read more ..

Jasonkiln Oct 17, 2022

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243

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help with triangles

Altitudes AD and BE of acute triangle ABC intersect at point H. If angle AHB = 128 degrees and angle BAH is 20 degrees, then what is angle HAC in degrees?

Guest Oct 17, 2022

Oct 16, 2022

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236

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plz help

Find the radius of the circle with equation 9x^2 - 18x + 9y^2 + 36y + 44 = 8x^2 - y^2 + 2x - 6y,

Guest Oct 16, 2022

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252

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+275

Probablity

Five adults and five children randomly sit in ten seats that are equally spaced around a circle, such that one person sits in each seat. What is the probability that there is at least one diameter of the circle with two adults sitting on opposite ends of read more ..

Jasonkiln Oct 16, 2022

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