Solve the problem.A building 160 feet tall casts a 70 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree)? (Assume the person's eyes are 4 feet above ground level.)
A. 63.34°
B. 26.66°
C. 66.37°
D. 65.83°
Answer: D
Mathematics
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Solve.
= 0
A. {-7} B. {7, -7} C. {7} D. ?
Mathematics
Solve.An earthquake had an intensity 108.4 times more powerful than a reference level earthquake, or 
What was the magnitude of this earthquake on the Richter scale? 
A. 1.6 B. 19.3 C. 18.4 D. 8.4
Mathematics
Find the equations of the system shown on the graphing calculator screen.10
-10
A. 5x + y = 7 x + 2y = -1 B. x + y = 1 x - 3y = -9 C. 3x - y = 9 5x + y = 7 D. 3x + y = 9 5x - y = 7
Mathematics
Give all possible rational zeros for the polynomial.f(x) = 22x7 + 88x3 + 2x - 11
A. ±1, ±11, ± 
B. ±1, ± 
, ±11, ± 
, ± 
C. ±1, ± 
, ±2, ± 
, ±11, ±22
D. ±1, ± 
, ±11, ± 
, ± 
, ± 
Mathematics