If r is the radius of a circle and d is diameter which is an equivalent formula for the circumference C=2pi r?

C=pid C=pi d2 C=pi rd C = 2pi d

You have been able to do the dishes in 30 minutes and vacuum in 15 minutes. youer roomate takes 40 minutes to do the dishes and 60 minutes to vacuum. based on this scenario

Kieth spent half of his allowance going to the movies. He washed the family car and earned nine dollars. What is his weekly allowance if he ended with seventeen dollars?

For each of the finite geometric series given below, indicate the number of terms in the sum and find the sum. For the value of the sum, enter an expression that gives the exact value, rather than entering an approximation. A. 5+5 (0.15) + 5 (0.

Which ratio is NOT equivalent to the other choices? A) 5:9 B) 9:5 C) 5 to 9 D) 5/9 (fraction)

Write a rational equation based upon the word problem you created. It will take Ana 4 hours to fully paint her room on her own. But Christian only take 2 hours. How long would it take them to paint Ana's room if they work together?

City scooters charges customers by the minute to rent an electric scooter. Jana rented a scooter for $60 minutes and paid $9. Write an equation that shows the price to rent a scooter for any number of minutes The price of the scooter rental is $0.

Which is a feature of a traditional IRA? A. There is no age limit for contributions. B. You can contribute until you're 70.5 years old. C. You can contribute until you're 59.5 years old.

one tank contains 50 gallons of water and another tank contains 75 gallons of water. water is draining out of both tanks at a rate of 6 gallons per minute. do the tanks ever have the same amount of water before either is empty

Simplify by dividing 3/5 by - 4/9

A cylinder has a radius of 12 m and a height of 9 m. What is the exact volume of the cylinder? A. 216pi m3 B. 108pi m3 C. 972pi m3 D. 1292pi m3