Identify the surface whose equation is given r^2 + z^2 = 4

Two cars leave town going in opposite directions. one car is traveling 55 miles per hour (mph), and the other car is traveling 40 mph. how long will it take before the cars are 285 miles apart?

Find the value of a that makes the following equation true. 6 (4 + a) = 96

Determine the number of solutions the following systems of equations have without solving them algebraically and explain your reasoning. a. 2x + 3y = 6 4x + 6y = 12 How many solutions does the system of linear equations have? Explain your reasoning.

A 63 kg object needs to be lifted 7 meters in a matter of 5 seconds. Approximately how much horsepower is required to achieve this task? A. 1.16 hp B. 864.36 hp C. 441 hp D. 0.59 hp

Which expression has a value equal to the value of the expression 4 * (12+4) - (12:3)

The post office will accept packages whose combined length and girth is at most 42 inches. (the girth is the perimeter/distance around the package perpendicular to the length; for a rectangular box, the length is the largest of the three dimensions.

Is 27 a perfect square?

Cual es la diferenciaa de z ah 7

Find the sum 6/7+7/8

Which of the following formulas would find the lateral area of a right cylinder where h is the height and ris the radius? O A. LA = 2trh O B. LA = 27012 O O c. LA = ac rh D. LA = 2017 SUBME