All Questions ⁺⁰223045 Questions

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PLEASE HELP QUICK :D

In this problem, we are constructing 12-letter words with four X’s, four Y’s, and four Z’s.
(a)How many such words have no X’s in the first 4 letters?
Please explain how you got the answers I am curious to know read more ..

Guest Mar 17, 2023

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Algebra

Need help with these
Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
(A) The following function is exponential: y = 2^x
(B) read more ..

Guest Mar 17, 2023

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Algebra

Factor (ab + ac + bc)^3 - a^3*b^3.

Guest Mar 17, 2023

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counting

At a meeting, five scientists, two mathematicians, five journalists, two biologists, and three politicians are to be seated around a circular table. How many different arrangements are possible if the scientists must all sit together (in read more ..

Guest Mar 17, 2023

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Counting

Find the number of six-digit numbers, where the sum of the digits is divisible by 8.

Guest Mar 17, 2023

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Algebra

Let a, b, and c be nonnegative real numbers. Prove that for all x >= 0,
(x + abc)^3 >= abc(x + a)(x + b)(x + c) >= (x + a + b + c)^3.

Guest Mar 17, 2023

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Algebra

Let r be a root of x^3 - 2x + 5 = x^3 - x^2 + 9. Show that none of r, r^2, or r^3 is irrational.

Guest Mar 17, 2023

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anser

what is 2(-8x-3)+18x

Guest Mar 17, 2023

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The snowstorm

At the beginning of a snowstorm, Connor had 11 inches of snow on his lawn. The snow then began to fall at a constant rate of 3 inches per hour. Assuming no snow was melting, how much snow would Connor have on his lawn 5 hours after the snow began to fall? read more ..

Guest Mar 17, 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 Mar 17, 2023

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counting

Need help quick
(a) Find the number of ways that Magnus can give out 20 identical stickers to 5 of his friends. (Not everyone has to get a sticker.)
(b) Find the number of ways that Magnus can give out read more ..

Guest Mar 17, 2023

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ixl is dumb

A parabola opening up or down has vertex (0, – 6) and passes through (12,6). Write its equation in vertex form.

Guest Mar 17, 2023

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help please

If $x$ is a positive integer, what is the value of $x$ for the equation $(x!-(x-3)!) \div 23 = 1$?

Guest Mar 17, 2023

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geometry

In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the read more ..

Guest Mar 17, 2023

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precalc

In triangle PQT, R is on side PT such that QR = QP. Also, QS is an altitude, and QT = 10. The values of tan TRS, tan QTR, tan SQT form an arithmetic progression, and the values of cot SQT, cot RQT, cot SQR form a geometic progression. read more ..

Guest Mar 17, 2023

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Complex numbers

help need help with this
Describe all solutions to zw - 3w - 2iw + 4z = 7iw + 5w + 11iz - 13 + 15i
where z and w are complex numbers.

Guest Mar 17, 2023

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Probability

I need to compute 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 the probability read more ..

Guest Mar 17, 2023

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Counting

Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have the same color. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one can read more ..

Guest Mar 17, 2023

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counting

How many solutions are there to the equation
u + v + w + x + y + z = 18
where u, v, w, x, y, and z are nonnegative integers, and x is at most 10?

Guest Mar 17, 2023

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complex numbers

Let a,b, and c be distinct integers and let x be a complex number such that x^3=1 and x≠1. Solve for the minimum value of the magnitude of a+bx+cx^2

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idontknowhowtodivide Mar 17, 2023

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counting

Help plz with this
There are 97 students in South High School. South High School offers only Chinese and Spanish. There are more students in Chinese than in Spanish, and every student takes at least one language. If students take read more ..

Guest Mar 17, 2023

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Ponzi Scheme

A Ponzi scheme is a fraudulent investment operation in which returns to investors are paid from funds collected from new investors rather than from profit earned by the operator. The scheme takes its name from the notorious operation of Charles Ponzi in read more ..

owy0218 Mar 17, 2023

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