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3 years ago

The cheerleading team lines up down the football field to rally the spectators. If there are 12 cheerleaders, which

Mathematics

1 answer:

Elan Coil [88]3 years ago

8 0

Answer:

So they can line up every single 10 yards because there are 120 yards on a football field

Step-by-step explanation:

12 cheerleaders gives you 1 every 10 yards

hope i helped

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The slope of the line below is -5. Which of the following is the point slope form of the line (2,-7)

tatyana61 [14]

Plugging in (2,-7) into

y=-5x+b, we get that b=3.

Therefore, the equation is y=-5x+3

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3 years ago

What is the value of this expression when c = -4 and d = 10?

jok3333 [9.3K]

Where is the expression?

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3 years ago

A woman has three skirts, five shirts, and four hats. How many different outfits can she wear if she picks one skirt, one shirt,

Aleksandr [31]

Answer:

Step-by-step explanation:

She has 3 skirts and that is the least amount of clothing and you need that to make a full outfit.

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3 years ago

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Miles bought a new pair of baseball cleats for $64.95. The sales tax is 6.5%. What is the total cost that Miles will pay?

Anit [1.1K]

Answer:

$69.17

Step-by-step explanation:

.065 x 64.95 ≈ $4.22

$69.17 + $4.22 = $69.17

Brainliest would be appreciated but not required :)

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3 years ago

Lindsay is checking out books at the library, and she is primarily interested in mysteries and nonfiction. She has narrowed her

Ratling [72]

Answer:

0.0677 = 6.77% probability that they will all be nonfiction

Step-by-step explanation:

The books are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

In this question:

10 + 12 = 22 books.

She chooses 4 books, which means that $n = 4$

12 nonfiction, which meas that $k = 12$

What’s the probability that they will all be nonfiction?

This is P(X = 4). So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 4) = h(4,22,4,12) = \frac{C_{12,4}*C_{10,0}}{C_{22,4}} = 0.0677$

0.0677 = 6.77% probability that they will all be nonfiction

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2 years ago