Find cos(A - B).cos A = - 
and cos B = - 
, with A and B in quadrant III.
A. 
B. 
C. 
D. 
Answer: D
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The combined area of two squares is 104 square meters. The sides of the larger square are 5 times as long as the sides of the smaller square. Find the dimensions of each of the squares.
A. Dimensions of the smaller square are 1 by 1 meters, dimensions of the larger square are 2 by 2 meters. B. Dimensions of the smaller square are 2 by 2 meters, dimensions of the larger square are 10 by 10 meters. C. Dimensions of the smaller square are 3 by 3 meters, dimensions of the larger square are 15 by 15 meters. D. Dimensions of the smaller square are 7 by 7 meters, dimensions of the larger square are 35 by 35 meters. E. Dimensions of the smaller square are 1 by 1 meters, dimensions of the larger square are 5 by 5 meters.
Solve.7x + 2 = 2x
A. -2.23 B. -3.11 C. 2.23 D. 0.322
Graph.f(x) = - 
x
A. 
B. 
C. 
D. 
Solve.A square has an area of 121 square feet. Find the length of a side.
A. 44 ft B. 10 ft C. 22 ft D. 11 ft