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2 years ago

HELP!

Mathematics

2 answers:

Anastasy [175]2 years ago

8 0

Answer:

Step-by-step explanation:

All terms are even. This means it either has to be A. or B. Since 24 is an even number, two even numbers are always added together. So A. is the correct answer.

noname [10]2 years ago

6 0

Answer:

any number even + even = even

10 + 14 = 24 and 24 is even

12+24=36 which is even

Odd + odd does = even but it doesn't represent the situation so it is wrong.

Step-by-step explanation:

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What will happen to the size of the population in the long run?

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I'm assuming there's a chart, but if there isn't,

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3 years ago

The price-earnings ratio for firms in a given industry follows the normal distribution. In this industry, a firm whose price-ear

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Answer:

The correct answer is

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3 years ago

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2 years ago

Subtract.<br> (6x + 5) - (x+3)

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2 years ago

Read 2 more answers

Consider a large shipment of 400 refrigerators, of which 40 have defective compressors. If X is the number among 15 randomly sel

Vlad [161]

Answer:

The required probability is 0.94

Step-by-step explanation:

Consider the provided information.

There are 400 refrigerators, of which 40 have defective compressors.

Therefore N = 400 and X = 40

The probability of defective compressors is:

$\frac{40}{400}=0.10$

It is given that If X is the number among 15 randomly selected refrigerators that have defective compressors,

That means n=15

Apply the probability density function.

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

We need to find P(X ≤ 3)

$P(X\leq3) =P(X=0)+P(X=1)+P(X=2)+P(X=3)\\P(X\leq3) =\frac{15!}{15!}(0.1)^0(1-0.1)^{15}+\frac{15!}{14!}(0.1)^1(1-0.1)^{14}+\frac{15!}{13!2!}(0.1)^2(1-0.1)^{13}+\frac{15!}{12!3!}(0.1)^3(1-0.1)^{12}\\$

$P(X\leq3) =0.944444369992\approx 0.94$

Hence, the required probability is 0.94

4 0

2 years ago