Solve the problem.A surveyor standing 70 meters from the base of a building measures the angle to the top of the building and finds it to be 35°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 50°. How tall is the radio tower?
A. 13.47 m
B. 12.35 m
C. 34.41 m
D. 18.76 m
Answer: C
Mathematics
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A. (9, 5, 7) B. No solution C. (-9, 7, 18) D. (9, 7, 5)
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Factor the expression completely, if possible.125a3 - 8b6
A. (5a + 2b2)(25a2 - 10ab2 + 4b4) B. (5a - 2b2)(25a2 + 10ab2 + 4b4) C. (5a - 2b2)(25a2 - 10ab2 + 4b4) D. (5a - 2b)(25a2 + 10ab + 4b2)
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Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (0, -15), (0, 15); F: (0, -9), (0, 9) B. V: (0, -15), (0, 15); F: (0, -12), (0, 12) C. V: (-15, 0), (15, 0); F: (-12, 0), (12, 0) D. V: (-15, 0), (15, 0); F: (-9, 0), (9, 0)
Mathematics
Find only the rational zeros.f(x) = x3 - 8x2 + 11x + 20
A. 5, 6, -1 B. -5, -6, 1 C. 4, 5, -1 D. -4, -5, 1
Mathematics