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3 years ago

9

The school marching band has 36 members. the band director wants to arrange the band members into a square formation. how many b

and members should be in each row?
a. 8b. 6c. 5d. 4

1 answer:

MAXImum [283]3 years ago

6 0

The answer is 6 because 6x6 = 36

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1. A luge race is very dangerous, and a crash can cause serious injuries. The league requires anyone who has a crash to have a t

antiseptic1488 [7]

Answer:

0.7061 = 70.61% probability she will have her first crash within the first 30 races she runs this season

Step-by-step explanation:

For each race, there are only two possible outcomes. Either the person has a crash, or the person does not. The probability of having a crash during a race is independent of whether there was a crash in any other race. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

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This means that $p = 0.04$

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This is:

$P(X \geq 1) = 1 - P(X = 0)$

When $n = 30$

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$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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2 years ago

Name each polygon! Determine if it appears to be a regular or not regular

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