Solve the problem.A building 270 feet tall casts a 50 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
A. 10°
B. 80°
C. 11°
D. 79°
Answer: A
Mathematics
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Solve the system using matrices.x - y+ 5z = 7x + 3y + z = 110.4x + 0.1z = 0.2
A. (0, 3, 2) B. No solution C. (2, 3, 0) D. (2, 0, 3)
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Find the slope of the polar curve at the indicated point.r = 5(1 + cos?), ? = 
A. 
B. -2
C. 1
D. 2
Mathematics
Simplify.
A. 6
B. 2x + 9
C. 12
D. 
Mathematics
Use your estimation skills to pick the most reasonable answer. Do not solve the problem.143.04 - 80.4096
A. 6.26304 B. 626.304 C. 62.6304
Mathematics