An engineer erects a 111-foot cellular telephone tower. Find the angle of elevation to the top of the tower at a point on level ground 62 feet from its base. Round your answer to one decimal place.
?
A. 60.8º
B. 64.8º?
C. 63.8º
D. 61.8º
E. 62.8º
Answer: A
Mathematics
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Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular cube 
A. 
B. 
C. 
D. 
Mathematics
The graph of an exponential function is given. Select the function for the graph from the functions listed.
A. f(x) = 4x - 2 B. f(x) = 4x C. f(x) = 4x - 2 D. f(x) = 4x + 2
Mathematics
Round to the indicated place value.Round to the nearest tenth: 0.3361
A. 0.34 B. 0.2 C. 0.3 D. 0.4
Mathematics
Write the expression as a complex number in the form a + bi.3i
A. 3 - 3i B. 3 + 3i C. 3 + 0i D. 0 + 3i
Mathematics