What is the standard deviation for a normal distribution of the times of the first seven runners?

The length of a rectangle is 3 centimeters more than 3 times the width. if the perimeter of the rectangle is 46 centimeters, find the dimensions of the rectangle. a. length = 5 cm; width = 18 cm b. length = 13 cm; width = 8 cm c.

Let f (x) = -5x+3 and g (x) = 2x-4 find f (x) + g (x) NEED SOON

Find the system of equations 3x-y=7 y=3x-2

At a carnival, you pay $15 for admission, plus $3 for each ride that you go on. Write a function A (r) that models the amount "A", in dollars, that you would spend to ride "r" rides at the carnival.

To convert 0.73 hours into minutes which ratio would you multiply by. a 1 minute / 60 hours

it takes the earth 24 hours to complete a full rotation. It take the sun approximately 25 days, nine hours, and seven minutes to complete a full rotation. How many hours does it take the sun to complete a full rotation?

you need 418 yards of blue silk to make one bridesmaid's dress and 358 yards of the same fabric to make another. How many yards of blue silk do you need to make both dresses?

What is the answer to x/3-9=-5

One of the highest snowfall rates ever recorded was in silver lake, colorado, in april 1921, when just over 7 feet of snow fell in 27.5 hours. what was the rate in inches per hour

On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.