Factor.5x2 + 20x
A. x(5x + 20)
B. 5x(x + 20)
C. 5x2(x + 4)
D. 5x(x + 4)
Answer: D
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Find the indicated part of the right triangle.One leg is 29.37, and the hypotenuse is 45.6. Find the smaller acute angle. Round your answer to the nearest tenth.
A. 49.9° B. 41.8° C. 33.0° D. 40.1°
Simplify the fraction to lowest terms.
A. 
B. 
C. 7
D. 
Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-fifth as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 