Which formula should you use for variance?

A first number plus twice a second number is 6. Twice the first number plus the second totals 24. Find the numbers

Find the value of each expression 30 = 3x2

Evalulate (m divided by p)) divided by n for m=1/4, n=4/5 and p=5

The width of a rectangle is three fourths of the length. The perimeter of the rectangle becomes 50cm when the length and width are increased by 2cm. Find the length and the width.

After painting his porch, Jamil has / dfrac14 4 1 start fraction, 1, divided by, 4, end fractionof a can of paint remaining. The can has a radius of 888 cm and a height of 202020 cm.

Scarlett selects a card at random from a deck that contains 18 red, 12 yellow, and 20 blue cards. What is the probability that she does not select a red card?

Solve for the variable: - 7y < 21 A. y > - 28 B. y < - 28 C. y > - 3 D. y < - 3

Are all negative numbers integers

Remember the Peach Orchard at the Amusement Park? You are trying to conserve water, including the water used to irrigate the orchards. Currently, you are using two sprinkler systems, and you need to analyze these systems.

70% the rides are made for kids who are who are who r 48 inches taller if there are 80 rides in total how many are made for kids who are 48 inches and taller