Evaluate.-9 ÷ 0
A. -9
B. undefined
C. 0
D. 1
Answer: B
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The area of a triangular sheet of paper is 11 square inches. One side of the triangle is 5 inches more than three times the length of the altitude to that side. Find the length of that side and the altitude to the side.
A. an altitude of 11 inches, a side of 21 inches long B. an altitude of 2 inches, a side of 11 inches long C. an altitude of 1 inches, a side of 11 inches long D. an altitude of 11 inches, a side of 2 inches long E. none of these
Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.cos ? = 
A. 60°; 300° B. 60°; 120° C. 150°; 210° D. 210°; 330°
Find the solution to the system by addition (elimination) method.5x - 
y = -45x - 
y = 5
A. (0, -5) B. (1, -5) C. (-1, -4) D. No solution
The power generated by a windmill is related to the speed of the wind by the formula 
, where 
is the speed of the wind (in mph) and 
is the power (in watts). Find the speed of the wind when the windmill is producing 413 watts of power.
A. 27.07 mph B. 28.99 mph C. 28.25 mph D. 27.44 mph E. 27.56 mph