All Questions ⁺⁰234922 Questions

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Simplest radical form

When $\sqrt[3]{112}$ is simplified, the result is $a \sqrt[3]{b}$, where a is an integer, and b is a positive integer. If b is as small as possible, then what is a + b?

Guest Apr 4, 2021

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321

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Functions Help

The function f : satisfies for all real numbers x. Then f(x) can be uniquely determined for all values of x, except and for some real numbers and . Compute

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Guest Apr 4, 2021

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468

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More Using Geometry in Probability

A point $(x$, $y)$ is randomly picked from inside the rectangle with vertices $(0$, $0)$, $(4$, $0)$, $(4$, $1)$, and $(0$, $1)$. What is the probability that $x

RiemannIntegralzzz Apr 4, 2021

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434

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simplest radical form

Simplify $\sqrt[3]{x \sqrt[3]{x}}$. Express your answer in simplest radical form in terms of x.

Guest Apr 4, 2021

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314

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counting question

How many positive whole numbers have cube roots that are less than 10 but greater than 5?

Guest Apr 4, 2021

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502

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Using Geometry in Probability

Points $A$, $B$, $C$, and $D$ and are located on $\overline{AB}$ such that $AB=3AD=6BC$. If a point is selected at random on $\overline{AB}$, what is the probability that it is between $C$ and $D$? Express your answer as a common read more ..

RiemannIntegralzzz Apr 4, 2021

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470

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Numbers Probability

The digits from 1 to 6 are arranged to form a six-digit multiple of 5. What is the probability that the number is greater than 500,000? Express your answer as a common fraction.

RiemannIntegralzzz Apr 4, 2021

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453

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Probability with Combinations

There are 3 math clubs in the school district, with 5, 7, and 8 students respectively. Each club has two co-presidents. If I randomly select a club, and then randomly select three members of that club to give a copy of Introduction to Counting and read more ..

RiemannIntegralzzz Apr 4, 2021

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346

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Math help

1. For 2+5=−x, what is the correct substitution for a, b, and c in the general form of ax2+bx+c=0?

Guest Apr 4, 2021

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398

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sum

The sum 1^2 + 2^2 + 3^2 + ... + n^2 = n(n + 1)(2n + 1)/6.

What is the value of 21^2 + 22^2 + 23^2 + ... + 40^2 + 41^2 + 42^2?

Guest Apr 4, 2021

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449

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Trigonometry

In ΔBCD, the measure of ∠D=90°, the measure of ∠B=22°, and DB = 44 feet. Find the length of BC to the nearest tenth of a foot.

Guest Apr 4, 2021

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352

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polynomials

Let f(x) = x^4-3x^2 + 2 and g(x) = 2x^8 - 6x^2 + 2x -1. Let a be a constant. What is the largest possible degree of f(x) + a* g(x)?

Guest Apr 4, 2021

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help please!

Suppose the ratio of Lev's age to Mina's age is $1 : 2$ and the ratio of Mina's age to Naomi's age is $3 : 4$. What is the ratio of Lev's age to Naomi's age? Give your answer in simplest form.

chese Apr 4, 2021

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Hi, this is a repost, but I am still wondering about this problem. Please help!

Let O be the center and let F be one of the foci of the ellipse 25x^2 +16 y^2 = 400. A second ellipse, lying inside and tangent to the first ellipse, has its foci at O and F. What is the length of the minor axis of this second ellipse?
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Guest Apr 4, 2021

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408

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Ordinary Simple Annuities

Hello looking for some assistance on this question please.

Haymour Apr 4, 2021

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666

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tangent question

A Unit circle has center at (5,0) and second circle with a radius 2 units has its center at (11,0). A common tangent to both circles intersects x-axis at Q(a,0) what is value of a

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geoNewbie21 Apr 4, 2021

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414

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algebra

It takes 1 1/2 cups of flour, 1 1/4 cups of sugar, and 1/2 cup of butter to bake fifteen shortbread cookies. If Ramon has 12 cups of flour, 14 cups of sugar, and 5 cups of butter, how many shortbread cookies can he bake?

Guest Apr 4, 2021

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400

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square roots

What is sqrt(2)*sqrt(6)*sqrt(110)*sqrt(169)?

Guest Apr 4, 2021

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406

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counting

There are 5 girls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every other player exactly once. How many games are payed in total?

Guest Apr 4, 2021

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443

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+3

Ordinary Simple Annuities

Hello Looking for some assistance regarding the following problem. Any help is appreciated.
An installment contract for the purchase of a car requires payments of $285.56 at the end of each month for 5.5 years. Interest is 9% per annum compounded read more ..

Haymour Apr 4, 2021

Apr 3, 2021

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383

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Algebra

Expand the following expression: 3(8x^2 - 5x + 1)

Guest Apr 3, 2021

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