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anastassius [24]

2 years ago

14

Simplify the expression: z8 * z-3

1 answer:

MissTica2 years ago

3 0

Answer:

z^5

Step-by-step explanation:

z^8 * z^-3

Since we are multiplying exponents and the bases are the same, we can add the exponents

z^(8-3)

z^5

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Math is hard, please help this idiot TwT

DIA [1.3K]

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3 0

2 years ago

8 freshmen, 9 sophomores, 9 juniors, and 7 seniors are eligible to be on a committee.

loris [4]

Answer: 11113200

Step-by-step explanation:

We know that , the number of combination of choosing r things from n things is given by :-

$^nC_r=\dfrac{n!}{r!(n-r)!}$

Then , the number of ways to choose a dancing committee if it is to consist of 4 freshmen, 5 sophomores, 2 juniors, and 3 seniors :-

Then , the number of ways to choose a dancing committee if it is to consist of 4 freshmen, 5 sophomores, 2 juniors, and 3 seniors :-

Then , the number of ways to choose a dancing committee if it is to consist of 4 freshmen, 5 sophomores, 2 juniors, and 3 seniors :-

$^8C_4\times ^9C_5\times^9C_2\times^7C_3$

$=\dfrac{8!}{(8-4)!4!}\times\dfrac{9!}{(9-5)!5!}\times\dfrac{9!}{(9-2)!2!}\times\dfrac{7!}{3!(7-3)!}\\\\ =\dfrac{8\times7\times6\times5\times4!}{4!4!}\times\dfrac{9\times8\times7\times6\times5!}{4!5!}\times\dfrac{9\times8\times7!}{7!2!}\times\dfrac{7\times6\times5\times4!}{3!4!}\\\\=11113200$

∴ The number of ways to choose a dancing committee if it is to consist of 4 freshmen, 5 sophomores, 2 juniors, and 3 seniors = 11113200

6 0

3 years ago

A circular pool has a radius of 3.2 meters. which is closest to the area of the pool

almond37 [142]

Answer:

32.17

Step-by-step explanation:

$A= \pi$ × $r^{2}$

A= $\pi$ × $3.2^{2}$ ≈ $32.16991$

A= $32.17$

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3 years ago

the monster cookie factory makes cookies that weigh 3\8 of a pound each. Mr.ybarra bought 2 1\2 pounds of these cookies how many

vampirchik [111]

HAVE NO IDEA! this takes alot of thinking to figure it out

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2 years ago

Which of the following statements are true about the angles in the figure? Select all that apply.

pashok25 [27]

Answer: the answers are 2,3,and 5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers