Use the given information to find the unknown length represented by the variable x.A square with an area of 169 square feet 
x
A. 26 ft
B. 338 ft
C. 52 ft
D. 13 ft
Answer: D
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Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
A. f(x) = 
, g(x) = 3x - 9
B. f(x) = 
, g(x) = 3x + 9
C. f(x) = -
, g(x) = 3x + 9
D. f(x) = x, g(x) = 3x + 9
Replace the polar equation with an equivalent Cartesian equation.r2 + 2r2 sin ? cos ? = 144
A. x2 + y2 = 144 B. x2 + 3y2 = 144 C. x + y = ±12 D. x + y = 12
Solve the problem.An investment is worth $3836 in year 0. By year 5 it has grown to $6376. Let I be the value of the investment in year x. The linear equation I = 508x + 3836 models the value, I, of the investment on year x. Interpret the slope.
A. The value of the investment increased by $508 between year 0 and year 5. B. The value of the investment is increasing at a rate of $508 per year. C. The value of the investment is increasing at a rate of $3836 per year. D. The value of the investment is decreasing at a rate of $508 each year.
Solve by any method.11x = 
A. 
B. 
C. 
D. 