Calculate the variance and the standard deviation of the data below: 23, 19, 22, 30, 28

You watch a football game. The team you cheer for loses 88 yards on four plays in a row. Which expression shows the total loss in yards? a) - 4 x - 8 b) 4 x 8 c) - 8 x 4 d) 8 + 4

Brad worked 40 hours last week and earned $394. What was Brad's hourly pay in dollars and cents?

Which one is irrational -9/5 Square root to 5 7/5 or Square root to 9

The concentration C (in mg/dl), of a certain antibiotic in a patient's bloodstream is given by C (t) = 50 t / (t^2 + 25) where t is the time (in hours) after taking the antibiotic. What is the concentration 5 hours after taking the antibiotic?

Is 3/4 greater, less or equal to 9/12?

How to write 1,010,101.101 in expanded form

Tom is hiking on a trail that lies on a railroad track. The total length of the trail is 5.4 kilometers. Starting from the beginning of the trail, he has been walking for 45 minutes at an average speed of 2.4 kilometers per hour.

A rocket is launched from the top of a 90 foot cliff with an initial velocity of 140 feet per second. The height, h, of the rocket after t seconds is given by the equati

4. Thirty divided by seven times a number A. 30 + 7n B. in 30 30 (7n) None of the above 30:7.

4/9 is the additive inverse of which number -4/9 -9/4 4/9 9/4