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3 years ago

radio station KROQ broadcast in all directions to a distance of 40 miles how many square miles are in the stations broadcast are

1 answer:

3 0

$\bf \textit{area of a circle}\\\\ A=\pi r^2~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=40 \end{cases}\implies A=\pi (40)^2\\\\\\ A=1600\pi \implies A\approx \stackrel{mi^2}{5026.5}$

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Say a business found that 98.3% of soda cans at a production facility in California are filled correctly. The company chooses 10

Shtirlitz [24]

Answer:

The events must be independent.

Step-by-step explanation:

The only assumption that must be made is that the events are independent. That is, the amount of soda in a given can does not depend on the amount of soda of any previous can filled at the same facility.

If this assumption holds, then the probability of finding exactly k cans of soda filled correctly would be

$\displaystyle\binom{100}{k}(0.983)^k(1-0.983)^{100-k}$

where

$\displaystyle\binom{100}{k}=\displaystyle\frac{100!}{k!(n-k)!}$

are combinations of 100 elements taken k at a time.

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4 years ago

A hot air balloon was flying at an altitude of 300 meters when the pilot decided to land by descending at a rate of 2 meters per

Brums [2.3K]

Answer:

the descending took 150 seconds

Step-by-step explanation:

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3 years ago

You are given the function C(x)=−4x2+4x+3 Find C(−1). Provide your answer below: C(−1)=

Sedaia [141]

Hey there! :)

Answer:

C(-1) = -5.

Step-by-step explanation:

C(x) = -4x² + 4x + 3

Plug in -1 for x to solve for C(-1):

C(-1) = -4(-1)² + 4(-1) + 3

Simplify:

C(-1) = -4 + (-4) + 3

C(-1) = -5

3 0

3 years ago

Read 2 more answers

A researcher estimates that a fossil is 3200 years old.

attashe74 [19]

Answer:

Step-by-step explanation:

6 0

3 years ago

(2,-1)<br> Is one of many solutions to the inequality:<br> X - 3y<1<br> True or false?

aksik [14]

Answer:

False

Step-by-step explanation:

lets find out..

x - 3y < 1.....check (2,-1)....x = 2 and y = -1

now we sub

2 - 3(-1) < 1

2 + 3 < 1

5 < 1.......so is 5 less then 1 ? NO, it is not...so (2,-1) IS NOT a solution

5 0

3 years ago