Build a variable expression for the given phrase.Nine times a number, increased by 49
A. 9 ? 49 + x
B. 9x
C. 9(x + 49)
D. 9x + 49
Answer: D
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Find the limit.
2 cos 
A. 2 B. 1 C. 0 D. - 2
Use factoring techniques to solve the equation.5(x - 3) = -20x + 5(x2 - 9)
A. {-1, 5, -6} B. {6, 1, 5} C. {-1, 6} D. {1, -6}
Solve the problem.Express cos(A + B + C) in terms of sin A, sin B, sin C, cos A, cos B, and cos C.
A. cos A cos B cos C - sin A sin B cos C - sin A sin C cos B + sin B sin C cos A B. cos A cos B cos C + sin A sin B cos C + sin A sin C cos B - sin B sin C cos A C. cos A cos B cos C - sin A sin B cos C - sin A sin C cos B - sin B sin C cos A D. sin A cos B cos C + sin B cos A cos C + sin C cos A cos B - sin A sin B sin C
Estimate the answer to the problem.James' drive from home to work is 32 miles one way. If in a month he goes to work 22 days, then how many miles does he drive going from home to work and back in one month?
A. 1500 miles B. 900 miles C. 1750 miles D. 1200 miles