Solve the problem. Give an exact answer and an approximation to the nearest tenth.The diagram below shows the side view of a plan for a slanted roof. Find the unknown length in this roof plan.
A. 
ft ? 18.0 ft
B. 
ft ? 5.0 ft
C. 
ft ? 10.7 ft
D. 
ft = 162.5 ft
Answer: A
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.10
- 4
+ 9
A. 30
B. -30
C. 24
D. 10
Mathematics
Solve the problem.Two ships leave a harbor together traveling on courses that have an angle of 129° between them. If they each travel 505 miles, how far apart are they (to the nearest mile)?
A. 1824 mi B. 41 mi C. 912 mi D. 435 mi
Mathematics
Solve the equation or inequality.
> -9
A. ?
B. (-?, ?)
C. 
D. 
Mathematics
Solve for the requested variable.y varies directly as x, and y = 6 when x = 3. Find y when x = 9.
A. y = 18
B. y = 
C. y = 
D. y = 2
Mathematics