For problems 1-13, simplify each expression.
A. 
B. 
C. 
D. 
E. none of these
Answer: A
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Solve the problem.The area of a square is 81 square centimeters. If the same amount is added to one dimension and removed from the other, the resulting rectangle has an area 9 square centimeters less than the area of the square. How much is added and subtracted?
A. 9 cm B. 12 cm C. 4 cm D. 3 cm
Evaluate as requested.A graph of a function g is shown below. Find g(-1.2).
A. -2.5 B. 3 C. 4.238 D. 0.352
Perform the indicated operations. Write the resulting polynomial in standard form.(6x4 + 9x3 - 3x2 - 4) + 
A. 13x18 + 1 B. 3x4 + 3x3 + 11x2 + 12 C. 9x4 + 16x3 - 12x2 + 1 D. 9x8 + 16x6 - 12x4 + 1
Graph the function in the window [-4, 4, 1] by [0, 8, 1]. State whether it illustrates exponential growth or exponential decay.f(x) = 1.7e-x + 1
A. Decay B. Growth