Use two equations in two variables to find the following integers.Twice one integer plus another integer is 19. The first integer plus 3 times the second is 32.
A. 3, 7
B. 5, 9
C. 6, 9
D. 6, 10
E. 3, 10
Answer: B
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Solve the problem.The spring of a spring balance is 6.0 in. long when there is no weight on the balance, and it is 9.3 in. long with 8.0 lb hung from the balance. How much work is done in stretching it from 6.0 in. to a length of 10.7 in.?
A. 95 lb?in. B. 5.7 lb?in. C. 4.6 lb?in. D. 27 lb?in.
Solve the problem.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula 
where W is the number of joules of work done to move the spring and k is the spring constant. If a spring has a spring constant of 0.6, find the amount of work needed to move the spring 5 centimeters.
A. 15 joules B. 1.5 joules C. 25 joules D. 7.5 joules
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Simplify the difference.(7y + 17) - (-5y + 3)
A. 12y + 14 B. -12y - 14 C. 26y D. 12y + 20