Solve. If necessary, round to the nearest tenth.A flagpole casts a shadow of 38 feet. Nearby, a 6-foot tree casts a shadow of 4 feet. What is the height of the flagpole?
A. 912 ft
B. 25.3 ft
C. 0.6 ft
D. 57 ft
Answer: D
Mathematics
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Replace the polar equation with an equivalent Cartesian equation. 2r cos ? + 8r sin ? = 1
A. 2x + 8y = x2 + y2
B. 
+ 
= 1
C. 2y + 8x = 1
D. 2x + 8y = 1
Mathematics
Write the standard form of the equation of the circle with radius r and center (h, k).r = 2; (h, k) = (0, 0)
A. (x - 2)2 + (y - 2)2 = 2 B. x2 + y2 = 2 C. (x - 2)2 + (y - 2)2 = 4 D. x2 + y2 = 4
Mathematics
Find the indicated derivative of the function.
of y = 4x6 - 4x4 + 5x2
A. 960x2 - 48x B. 1440x2 - 96x C. 1440x2 - 96 D. 960x2 - 48
Mathematics
Solve.A basketball player made 90 out of 100 attempted free throws. What percent of free throws was made?
A. 
%
B. 0.9%
C. 9%
D. 90%
Mathematics