All Questions ⁺⁰237784 Questions

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geometry

In triangle AB, let the angle bisectors be BY and CZ. Given AB = 16, AY = 16, and CY = 16, find BC and BZ.

Guest Apr 11, 2023

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Counting

I have to count these for class
There are 18 padded chairs around a circular table, and the chairs are numbered from 1 through 18 . How many ways can five people take their seats, so that no two people are adjacent read more ..

Guest Apr 11, 2023

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counting

When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.
Find all possible ways of numbering two 6-sided dice read more ..

Guest Apr 11, 2023

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geometry

For the triangle below, let x be the area of the circumcircle, and let y be the area of the incircle. Compute x - y.

Guest Apr 11, 2023

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148

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Binomials

For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n
are 1 - 20x + 200x^2 + cx^3 +...
find c

Guest Apr 11, 2023

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cba 9

Concrete can be purchased by the cubic foot. How much will it cost to pour a rectangular prism shaped slab 16 feet by 16 feet by 1/2feet for a patio if the concrete costs $15.00 per cubic foot?

Guest Apr 11, 2023

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Jessica has 900 feet of fencing and a very large field. She can enclose a rectangular area with dimensions x feet and (450 − x) feet. What i

Jessica has 900 feet of fencing and a very large field. She can enclose a rectangular area with dimensions x feet and (450 − x) feet. What is the largest rectangular area she can create?

Guest Apr 11, 2023

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HELP PLS, MATH QUESTION

In triangle $PQR,$ $M$ is the midpoint of $\overline{PQ}.$ Let $X$ be the point on $\overline{QR}$ such that $\overline{PX}$ bisects $\angle QPR,$ and let the perpendicular bisector of $\overline{PQ}$ intersect $\overline{PX}$ at $Y.$ If $PQ = 36,$ $PR read more ..

Guest Apr 11, 2023

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Algebra

Let a and b be real numbers such that a - b = 1 and a^3 - b^3 = 1
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all possible values of a and b

Guest Apr 11, 2023

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133

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counting

You are given the 4 x 4 grid below.
(a) Find the number of ways of placing 8 counters in the squares (at most one counter per square), so that each row contains exactly two counters.
(b) Find the number of ways read more ..

Guest Apr 11, 2023

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145

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binomial theorem

(a) Simplify (n/k)/(n/(k - 1))
(b) For some positive integer n, the expansion of (1 + x)^n has three consecutive coefficients a, b, c that satisfy 1:8:28. What must n be?

Guest Apr 11, 2023

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Stats

A list of ten distinct, positive integers has a median of 5.5. What is the smallest possible average of the ten positive integers? Explain your ansswer in complete sentences.

Guest Apr 11, 2023

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142

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graphing

What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 18)?

Guest Apr 11, 2023

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What is this answer

What is 38274x89/(582+53749827)x68-(10784862-8932493)=?

Guest Apr 11, 2023

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141

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geometry

In triangle ABC, AB = 6, BC = 8, and angle ABC = 90 degrees. Find the area of triangle ABC.

Guest Apr 11, 2023

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147

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geometry

In triangle ABC, angle A = 30 degrees and angle B = 60 degrees. Point X is on side AC such that line segment BX bisects angle ABC. If AC = , then find the area of triangle BXA.

Guest Apr 11, 2023

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136

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Probability

A member of the junior varsity swim team will be elected as President. Each member is equally likely to be elected. The probability that a sophomore is elected is times the probability that a freshman is elected. Everyone on the junior varsity read more ..

Guest Apr 11, 2023

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f(x)={(x^(2)+1, se x<2),

f(x)={(x^(2)+1, se x<2),
(2, se x=2), em a=2
(x+3, se x>2):}

Guest Apr 11, 2023

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159

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Help

When a certain medical drug is administered to a patient, the number of milligrams remaining in the patient's bloodstream after t hours is modeled by
D(t) = 90e−0.1t.
How many milligrams of the drug remain in the read more ..

Guest Apr 11, 2023

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