All Questions ⁺⁰237643 Questions

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195

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piecewise func

Let
For how many integers from 1 to 100, inclusive, does f(f(...f(n) = 1 for some number of applications of f? read more ..

Guest Dec 10, 2022

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185

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Algebra

Arrange the following numbers in increasing order (smallest first, biggest last):

A = 2*1/2*4*1/6
B = 12*128 read more ..

Guest Dec 10, 2022

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212

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help algebra

Let's take a look at (x + y)^2 (x - y)^2 and (x^2 + y^2)(x^2 - y^2). While Beeker believes that these two expressions are equal for all real numbers x and y Clod believes they are not! Let's get to the bottom of this!
a) Evaluate (x + y)^2 (x - read more ..

Guest Dec 10, 2022

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225

3

+20

rotational symmetry question

A senate committee has 5 democrats and 5 republicans, in how many ways could they sit around a circular table if each member sits next to two members of the opposite party (Two seatings are the same if one is a rotation of the other)? read more ..

JaritoDaFrito Dec 10, 2022

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195

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identity

For a certain function f(n), the identity
(2n)/n - (2n)/(n + 1) = f(n) (2n)/n
for all nonnegative integers n. Find f(n).

Guest Dec 10, 2022

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211

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Binomials

Simplify binom{100}{50}/binom{200}{51}*binom{100}{51}/binom{200}{50}

Guest Dec 10, 2022

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187

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Binomials

Fill in the blanks to make the equation true (Each blank should contain a positive integer.)

\binom{n}{k} = \binom{n - 2}{k} + \binom{n - 2}{k - 1} + \binom{n - 1}{k} + \binom{n - 1}{k - 1} + \binom{n}{k - 1} + \binom{n}{k + read more ..

Guest Dec 10, 2022

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170

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Binomials

For nonnnegative integers a and b, where a >= 2 and b >= 2, simplify
binom{a + b}{2} + binom{2a + b}{2} + binom{a + 2b}{2} - binom{a - b}{2}

Guest Dec 10, 2022

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188

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quadratic

Let a and b be the roots of the quadratic 2x^2 - 8x + 7 = x^2 - 14x + 1. Compute a^3 + b^3.

Guest Dec 10, 2022

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202

1

3(x+2)=20-4x

Guest Dec 10, 2022

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221

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Triangle Sides

A triangle with two sides of 19 cm and 16 cm respectively, what are all possible values of the third side of this triangle? Thank you.

Guest Dec 10, 2022

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253

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How to convert the final answer to Standard form.

Hello All,
How can I convert the final answer to the standard form.
For example, I get the answer as: 0.00000000000123
read more ..

Guest Dec 10, 2022

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201

0

xy(x 2 +xy+y 2 )-x 2 (y 2 -xy-x 2 )

xy(x2+xy+y2)-x2(y2-xy-x2)

Guest Dec 10, 2022

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249

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Probability

Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.5.

Guest Dec 10, 2022

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187

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counting

Valeria has three coins, each of which has a probability of 1/2 of coming up heads. On her first turn, she flips all three coins. If all three come up heads, then she stops. Otherwise, for her second turn, she flips any coins that came up tails. read more ..

Guest Dec 10, 2022

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223

1

Probability

In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you buy a ticket, you choose three numbers from 1 to 12, read more ..

Guest Dec 10, 2022

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195

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Algebra

Solve for y if 9^y = 3*6*27*4*81*10*2

Guest Dec 10, 2022

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187

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Help

Sara has 12 dozen muffins to sell. She sells 3 dozen muffins to one customer and 5 dozen muffins. How many muffins does Sara have left to sell?

Guest Dec 10, 2022

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203

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factoring

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Dec 10, 2022

Dec 9, 2022

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208

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help pls

Find a polynomial q(x) such that (x+1)^3+x^2*q(x) has degree less than 2

Guest Dec 9, 2022

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193

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Geometry

Let AB be a diameter of a circle, and let C be a point on the circle such that AC=8 and BC=14 The angle bisector of ACB intersects the circle at point M Find CM.

Guest Dec 9, 2022

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