Use the given triangles to evaluate the expression. Rationalize all denominators. 
tan 45° - sin 60°
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 89?
A. 4.1 hr B. 100.90 hr C. 41.00 hr D. 7.16 hr
Mathematics
Use long division to determine whether the binomial is a factor of f(x).f(x) = x3 - 9x2 + 20x - 12; x - 1
A. Yes B. No
Mathematics
Write a positive or negative integer that describes the situation.The height of the mountain was 11,014 feet.
A. -11,014 B. 11,014
Mathematics
Solve. –9 = 3m
A) m = 3 B) m = –12 C) m = –3 D) m = –4 E) no solution
Mathematics