Solve the problem. Round the answer to the nearest tenth, if necessary.A painter leans a ladder against one wall of a house. The ladder is 26 ft long. The base of the ladder is 19 ft from the house. How high is the wall of the house?
A. 157.5 ft
B. 17.7 ft
C. 8.85 ft
D. 22.5 ft
Answer: B
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Factor out the greatest common factor.9z - 45
A. 5(z - 9) B. 9(z - 45) C. 9(z + 5) D. 9(z - 5)
Solve the problem.The loudness of a sound can be approximated by the formula d = 10 log 
where d is the number of decibels. The higher the value of d, the louder the sound. Find the number of decibels when I = 10,000 and I0 = 1.
A. 10,000 B. 14 C. 10 D. 40
Find the area of the specified region.Inside the lemniscate r2 = 4 sin 2? and outside the circle r = 
A. 
(3
- ? + 6)
B. 
(3
- ?)
C. 
D. 
(2? + 3
)
Find the degree and leading coefficient of the polynomial.1
A. Degree: 0; leading coefficient: 0 B. Degree: 1; leading coefficient: 1 C. Degree: 0; leading coefficient: 1 D. Degree: 1; leading coefficient: 0