Evaluate the expression, given x = -2, y = 3, and a = -4.5a - 5y - 7x
A. 49
B. -21
C. -11
D. -31
Answer: B
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Solve the problem.A ship leaves point A and travels directly north to point B. From point B, the ship then travels due east to point C. The magnitude of the vector from point A to point C is 140. Find the magnitude of the northern vector. Find the magnitude of the eastern vector.
A. 70 north; 70 east
B. 70
north; 70
east
C. 70
north; 70 east
D. 70 north; 70
east
Graph the function by starting with the graph of 
and using transformations.f(x) = (x - 5)2 
A. 
B. 
C. 
D. 
Use formulas for perimeter and area to solve the problem.Jordan has a trapezoidal yard. Part of the yard is covered by his home, and the rest is covered in grass. Use the drawing to determine how many square feet of grass are in the yard.
A. 5928 ft2 B. 5759 ft2 C. 10,775 ft2 D. 4847 ft2
Find the indicated coefficient or term.The coefficient of x in the expansion of (2x + 7)3
A. 84 B. 49 C. 294 D. 588