Use a right triangle to simplify.sin 
A. a
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the dimensions of a rectangle whose perimeter is 30 feet and whose area is 50 square feet.
A. 6 ft by 9 ft B. 5 ft by 10 ft C. 4 ft by 11 ft D. 4 ft by 9 ft
Mathematics
Graph.25x2 - 9y2 = 225
A. 
B. 
C. 
D. 
Mathematics
Solve the variation problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 feet from a light is 4 foot candles, find the intensity on a screen 20 ft from the light.
A. 2 foot-candles
B. 1
foot-candles
C. 
foot-candles
D. 
foot-candles
Mathematics
Completely factor the polynomial or state that the polynomial is prime.49 - x2
A. (7 - x)(7 + x) B. prime C. (7 - x)2 D. (7 + x)2
Mathematics