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^{+0}
223045 Questions
0
3
3
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
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Guest
Mar 17, 2023
0
4
0
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)
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Guest
Mar 17, 2023
0
2
2
Algebra
Factor (ab + ac + bc)^3 - a^3*b^3.
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Guest
Mar 17, 2023
0
2
1
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
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Guest
Mar 17, 2023
0
2
1
Counting
Find the number of six-digit numbers, where the sum of the digits is divisible by 8.
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Guest
Mar 17, 2023
0
4
0
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
0
4
0
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
0
3
2
anser
what is 2(-8x-3)+18x
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Guest
Mar 17, 2023
0
4
1
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?
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Guest
Mar 17, 2023
0
5
1
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
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Guest
Mar 17, 2023
0
2
0
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
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Guest
Mar 17, 2023
0
3
2
ixl is dumb
A parabola opening up or down has vertex (0, – 6) and passes through (12,6). Write its equation in vertex form.
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Guest
Mar 17, 2023
0
3
1
help please
If $x$ is a positive integer, what is the value of $x$ for the equation $(x!-(x-3)!) \div 23 = 1$?
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Guest
Mar 17, 2023
0
3
0
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
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Guest
Mar 17, 2023
0
3
0
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.
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Guest
Mar 17, 2023
0
2
0
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
0
4
1
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
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Guest
Mar 17, 2023
0
4
2
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
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Guest
Mar 17, 2023
0
4
2
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?
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Guest
Mar 17, 2023
+1
3
5
+184
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
0
2
1
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
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Guest
Mar 17, 2023
0
2
2
+4
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
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owy0218
Mar 17, 2023
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