Solve the equation.x -  = -6

A. {-19}
B. {19}
C. {17}
D. {-17}


Answer: D

Mathematics

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Combine like terms and solve the following equation.10t - 5t = 45 

A. t = –1 B. t = 45 C. t = 9 D. t = 90 E. t = 4

Mathematics

Solve the problem.A small frictionless cart, attached to the wall by a spring, is pulled 10 cm back from its rest position and released at time t = 0 to roll back and forth for 4 sec. Its position at time t is . What is the cart's maximum speed? When is the cart moving that fast? What is the magnitude of of the acceleration then?

A. 10? ? 31.42 cm/sec; t = 0 sec, 1 sec, 2 sec, 3 sec; acceleration is 0 cm/sec2 B. 10? ? 31.42 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 C. 10? ? 31.42 cm/sec; t = 0.5 sec, 2.5 sec; acceleration is 1 cm/sec2 D. ? ? 3.14 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2

Mathematics

Evaluate the function. If y = f(x), find f(4).

A. -2 B. 3 C. -3 D. 2

Mathematics

Find the indefinite integral. ? ?

A.
B. ?
C. ?
D. ?
E. ?

Mathematics