Solve the problem.The width of a rectangle is 6 kilometers less than twice its length. If its area is 176 square kilometers, find the dimensions of the rectangle.
A. length = 8 km, width = 10 km
B. width = 11 km, length = 16 km
C. length = 3 km, width = 
km
D. length = 11 km, width = 16 km
Answer: D
Mathematics
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Solve. 27 - n2 = 6n
A. 9, -3 B. 3, -9 C. -9, -3 D. 3, 9
Mathematics
Solve the problem.If tan ? = 1.0, find the value of tan ? + tan (? + ?) + tan (? + 2?).
A. 3 + 3? B. 3 C. 5 D. undefined
Mathematics
Graph the ellipse. Label the foci and the endpoints of each axis.
+ 
= 1
A. F(±
, 0); V(0, ±5); U(±2, 0)
B. F(±2
, 0); V(±2, 0); no endpoints
C. F(±2
, 0); V(±4, 0); U(0, ±2)
D. F(0, ±2
); V(0, ±4); U(±2, 0)
Mathematics
Use the given information about the polynomial function f(x) to write its complete factored form.f(x) = -5x2 + 5x + 30; zeros: 3 and -2
A. f(x) = (x - 3)(x + 2) B. f(x) = -5(x + 3)(x - 2) C. f(x) = -5(x - 3)(x + 2) D. f(x) = 5(x - 3)(x + 2)
Mathematics