Which of the following best describes an imaginary number?

A.) The square root of a positive number

B.) A number that does not exist

C.) The square root of a negative number

D.) A number that is represented with the variable x

Read the following statement: All real numbers have a reciprocal. Which of the following choices is a counterexample to the statement? 1/4 0 1 -7

Cody has 12 feet of landscape boarder to put around a square flower garden. He uses the boarder to make four sides of the same length. Which expression does NOT equal the length of one of the four sides in feet? A) 4+12 4/12 12 - 4

Find the area of the shaded region if the big diameter is 12 in, and the small diameter is 8 in

Suppose a researcher is interested in understanding the variation in the price of store brand milk. a random sample of 36 grocery stores is selected from a population and the mean price of store brand milk is calculated. the sample mean is $3.

Louie made 8.1 liters of fruit punch using only grape juice and carbonated water. He used 4.2 liters of grape juice. The equation 4.2 + c = 8.1 can be used to represent this situation, where c is the number of liters of carbonated water used.

The sum of twice a number and 4 is equal to the sum of the number and 7

A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.

How much water is in an empty glass that is 10cm high and has a diameter of 5cm

Which of the following measuring instruments is used to test the quality of wire insulation?

A bottle rocket experiences a 500 N force to the right and 300 N of air resistance to the left. Will it accelerate to the left, right, or not accelerate at all?