Solve the problem.A twenty-five foot ladder just reaches the top of a house and forms an angle of 41.5° with the wall of the house. How tall is the house? Round your answer to the nearest 0.1 foot.

A. 18.7 ft
B. 19 ft
C. 18.8 ft
D. 18.6 ft


Answer: A

Mathematics

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Find the distance between the two points (6, 1) and (6, 7).

A. 1 B. 13 C. 12 D. 11 E. 6

Mathematics

For the region R, find the horizontal line y = k that divides R into two subregions of equal area.R is the region bounded by y = 8 - x, the x-axis, and the y-axis.

A. k = 8 - 
B. k = 8 + 4
C. k = 8 - 4
D. k = 1 - 4

Mathematics

Solve the problem.What polynomial expression represents, in appropriate units, the perimeter of this square? The area? 

A. Perimeter: 12t + 16; Area: 9t2 + 24t + 16 B. Perimeter: 12t + 16; Area: 9t2 + 16 C. Perimeter: 12t + 4; Area: 9t2 + 12t + 16 D. Perimeter: 12t + 4; Area: 6t2 + 24t + 8

Mathematics

Identify the polynomial as a monomial, binomial, or trinomial. Give the degree of the polynomial.-10y + 9

A. Monomial, degree -10 B. Binomial, degree 0 C. Binomial, degree 1 D. Binomial, degree 2

Mathematics