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7nadin3 [17]
3 years ago
11

F(x) = 2x(x2 + 5)(3x – 5)

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0
Im not sure if it's right but here you go!

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The heights of American men have an approximately bell-shaped distribution with a mean of 70 inches (5' 10") and standard deviat
Katyanochek1 [597]

Answer:

0.9973  is the percentage of American men whose height is between 61 and 79 inches.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70 inches

Standard Deviation, σ = 3 inches

We are given that the distribution of heights of American men is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(height is between 61 and 79 inches)

P(61 \leq x \leq 79) = P(\displaystyle\frac{61 - 70}{3} \leq z \leq \displaystyle\frac{79-70}{3}) = P(-3 \leq z \leq 3)\\\\= P(z \leq 3) - P(z < -3)\\= 0.9987 - 0.0014 = 0.9973= 99.73\%

P(61 \leq x \leq 79) = 99.73\%

0.9973  is the percentage of American men whose height is between 61 and 79 inches.

4 0
3 years ago
The Mayflower started with 150 passengers. It lost 60% due to illness. How many people remained?
dmitriy555 [2]

Answer:

90 people.

Step-by-step explanation:

60% can be deduced to a fraction of 6/10. If 6/10=150, then you can cross multiply 6*150 and 10*1. 900/10=90.

5 0
3 years ago
ILL MARK BRAINIEST IF YOU CAN DO ALL OF THESE!!!<br> ANSWER TO GET BRAINIEST!!!
Dafna1 [17]

Answer:

9. 210

11. 136.64

10. 282.4

12. 88.56

Step-by-step explanation:

sorry if 9,10,11,12 i answering

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3 years ago
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slamgirl [31]

Answer:

-16

Step-by-step explanation:

simplify the expression

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4 years ago
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5 + 12 = 17 . Area is length x wide
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3 years ago
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