Solve using the elimination method. Use a graphing calculator to check your answer.x + y = 4x - 2y = 21

A. (6, -8)
B. (6, 8)
C. (-6, -8)
D. (-6, 8)


Answer: A

Mathematics

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Simplify. Assume that all variables represent positive real numbers. - 

A. - 
B.
C.  
D. 0

Mathematics

Solve the problem.Zach is planning to invest up to $40,000 in corporate and municipal bonds. The least he will invest in corporate bonds is $7000 and he does not want to invest more than $28,000 in corporate bonds. He also does not want to invest more than $25,053 in municipal bonds. The interest is 8.5% on corporate bonds and 6.1% on municipal bonds. This is simple interest for one year. What is the maximum income?

A. $15,112 B. $3112 C. $17,648 D. $31,112

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Decide whether or not the function is continuous in the indicated x-interval.2 to 4

A. Not continuous B. Continuous

Mathematics

Graph the function.y = 9 - 8

A.

B.

C.

D.

Mathematics