3 years ago

Write a simplified expression for the area of the rectangle

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Answer:

Area = 40x + 15 squared units.

Step-by-step explanation:

Area of a rectangle = Length × width

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zimovet [89]

Answer:

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3 years ago

A simple random sample of 100 men is chosen form a population with mean height 71 in and standard deviation 2.5 in. What is the

ankoles [38]

Answer:

2.28%

Step-by-step explanation:

The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if it is negative then it is below the mean. It is given by:

$z=\frac{x-\mu}{\sigma}\\ \\\mu = mean, \sigma=standard\ deviation,x=raw\ score\\\\For\ a\ sample\ n\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\For\ x$