Perform the indicated operations.-8(7) - (-17) ? 3
A. -5
B. -107
C. 13
D. 5
Answer: A
Mathematics
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Provide an appropriate response. The angles of elevation to an airplane from two points A and B on level ground are 53° and 71°, respectively. The points A and B are 2.8 miles apart, and the airplane is east of both points in the same vertical plane. Find the altitude of the plane.
A. 8.6 miles B. 0.9 miles C. 27.7 miles D. 6.8 miles
Mathematics
Perform the operations indicated. Write your answer in simplest form.-175 ÷ 7
A. 25
B. -25
C. - 
D. -35
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 7x - 7, g(x) = 
x + 1
A. Yes B. No
Mathematics
Solve using matrices.4x + 9y - z = 21 x - 5y + 7z = -2 8x + y + z = 11
A. (-1, 2, 2) B. (1, 1, 2) C. (2, 1, 1) D. (1, 2, 1)
Mathematics