19. Why are the substitution and elimination methods necessary when we already know how to solve systems of linear equations using the graphing method?

Complete the equation of line whose y intercept is (0,6) and slope is 3

The Weights Of Adult Men In A Hypothetical Population Are Approximately Normally Distributed About A Mean Of 175 Lbs. With A Standard Deviation Of 15 Lbs.

Name three quaderlateral that only sometimes have right angle

The area of the gym floor is 6,536 square feet. the length of the floor is 76 feet what is the width

Timothy has the following ingredients to mix together to make packages of fruit snacks: 1 1/2 pounds of apricots, 3 1/2 pounds of grapes, and 2 pounds of raspberries. How many 1/4-pound packages can he make? a. 5B. 7C. 12 1/2D. 18

What is the factores form of 4x^2+23x-72

Suppose that the cost of renting a snowmobile is 37.50 for 5 hours. What would be the cost of renting 2 snowmobiles for 5hours?

44/5 as a mixed number

Determine the sign of cos pi divided by seven without using a calculator. Positive Negative

Helga and Julie are sisters. Helga is six years younger than twice Julie's age. The sum of Helga's age and Julie's age is 36. Write an equation that can be used to find Helga's age