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3 years ago

Can someone help me with #9

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

Answer:

5<x<11

Step-by-step explanation:

x +3 must be greater than 8

8+3 must be greater than x

otherwise it wont be able to form triangle

lmk if you want me to elaborate

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At a toy factory, toy cars are produced on an assembly line. It takes 2.054 s to attach each of the four wheels. It takes 3.652

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4 years ago

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3 years ago

Normal Distribution. Cherry trees in a certain orchard have heights that are normally distributed with mu = 112 inches and sigma

Lubov Fominskaja [6]

Answer:

The probability that a randomly chosen tree is greater than 140 inches is 0.0228.

Step-by-step explanation:

Given : Cherry trees in a certain orchard have heights that are normally distributed with $\mu = 112$ inches and $\sigma = 14$ inches.

To find : What is the probability that a randomly chosen tree is greater than 140 inches?

Solution :

Mean - $\mu = 112$ inches

Standard deviation - $\sigma = 14$ inches

The z-score formula is given by, $Z=\frac{x-\mu}{\sigma}$

Now,

$P(X>140)=P(\frac{x-\mu}{\sigma}>\frac{140-\mu}{\sigma})$

$P(X>140)=P(Z>\frac{140-112}{14})$

$P(X>140)=P(Z>\frac{28}{14})$

$P(X>140)=P(Z>2)$

$P(X>140)=1-P(Z$

The Z-score value we get is from the Z-table,

$P(X>140)=1-0.9772$

$P(X>140)=0.0228$

Therefore, the probability that a randomly chosen tree is greater than 140 inches is 0.0228.

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4 years ago

PLEASE HELP THIS IS SCIENTIFIC NOTATION AND MY TEACHER DOESNT TELL US HOW TO DO IT

kramer

Answer:

1) 6041921252.76

2) 3783786034.9

Step-by-step explanation:

You move the decimal point 9 spaces to the right

6 0

3 years ago