Solve the system by either elimination or substitution. Verify your work by using "intersect" on your graphing calculator of by checking that your result satisfies both equations of the system.2(3x - 7) + 5y = 24x - 3(4y + 1) = -23
A. (1, 7)
B. (1, 2)
C. (-1, 2)
D. (2, 2)
Answer: B
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Solve the equation for the specified variable.A = P(1 + nr) for r
A. r =
B. r =
C. r =
D. r =
Solve by the elimination method. +
= 32
-
= 40
A. {(100, 27)} B. {(-100, -27)} C. {(-100, 27)} D. {(100, -27)}
Factor the expression completely. If the polynomial is prime, state this as your answer.375x4 - 24x
A. 3x(5x + 2)(25x2 - 10x + 4) B. 3x(5x - 2)(25x2 + 10x + 4) C. 3x(5x - 2)(25x2 - 10x + 4) D. 3(5x - 2)(25x2 + 10x + 4)
Solve the problem.Jill is 9 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1 kilometers per hour. They meet in 3 hours. How fast is Joe walking?
A. 1.5 kilometers per hour B. 2 kilometers per hour C. 6 kilometers per hour D. 4 kilometers per hour