Solve the problem.A contractor needs to know the height of a building to estimate the cost of a job. From a point  away from the base of the building, the angle of elevation to the top of the building is found to be  Find the height of the building. Round your answer to the hundredths place when necessary.

A. 108.45 ft
B. 114.21 ft
C. 109.98 ft
D. 112.88 ft


Answer: C

Mathematics

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Solve the inequality, giving its solution set in both interval and graph forms. < 

A.  

B.  

C.  

D.  

Mathematics

Solve.The bar graph shows the median annual income for residents of a selected region of the United States, by level of education. The given polynomial models describe the median annual income for men, M, and for women, W, who have completed x years of education.M = -23x3 + 1170x2 - 13,808x + 72,566W = 8x3 - 56x2 + 511x + 14,763Find a mathematical model for M - W and use it to calculate the difference in the median annual income between men and women with 14 years of education. Does the model underestimate or overestimate the actual difference?

A. $12,569; overestimates B. $11,259; underestimates C. $26,877; overestimates D. $9383; underestimates

Mathematics

Use Cramer's rule to solve the linear system.

A. x = 2, y = -1, z = -6 B. x = 1, y = 6, z = 1 C. x = 2, y = 1, z = 6 D. x = 3, y = -1, z = 6

Mathematics

Find the inverse of the function.f(x) = 

A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 

Mathematics