Step-by-step explanation: You have to brake down the two, dividing it by 2, which equals to 1. Then, divide the 12 by the same amount as you divide the 2, which is 6. Here you go.

6 0

3 years ago

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In a recent survey, 73% of the community favored building a police substation in their neighborhood. If 14 citizens are chosen,

Archy [21]

Answer:

So, the probability is P=0.094.

Step-by-step explanation:

We know that in a recent survey, 73% of the community favored building a police substation in their neighborhood.

We get that p=0.73 and q=1-0.73=0.27.

We calculate the probability that exactly 8 of them favor the building of the police substation, if 14 citizens are chosen.

We get that n=14 and k=8.

We calculate the probability:

$P=C_k^n\cdot p^k\cdot q^{n-k}\\\\P=C_8^{14}\cdot 0.73^8\cdot 0.27^6\\\\P=3003\cdot 0.00003124\\\\P=0.094\\$

So, the probability is P=0.094.

4 0

3 years ago

What is the solution to the equation -3(h+5)+2 = 4(n+6)-9

elixir [45]

here is your answer. i think i did it right.

6 0

3 years ago

A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the p

harkovskaia [24]

<h3>Answer: Choice D. 12,600 feet</h3>

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Explanation:

We have two similar triangles here, so we can set up the proportion below to solve for x

5200/(5200+6500) = 5600/x

5200/11700 = 5600/x

5200x = 11700*5600 .... cross multiply

5200x = 65,520,000

x = (65,520,000)/(5200)

x = 12,600 which shows why the answer is choice D

side note: 12,600 ft = 2.386 miles approximately

6 0

3 years ago