Solve.A ladder that is 15 feet long is 9 feet from the base of a wall. How far up the wall does the ladder reach?
A. 12 ft
B. 
ft
C. 144 ft
D. 3
ft
Answer: A
Mathematics
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Change the order of integration and evaluate the integral.
A. 90?
B. 
?
C. 
?
D. 
Mathematics
Solve the equation by the Square Root Method.(x + 4)2 = 11
A. {7}
B. {
, -
}
C. {-4 + 
, -4 - 
}
D. {4 + 
, 4 - 
}
Mathematics
Solve the problem.For children aged 5 to 15 years, the number of hours watching cartoons per week can be estimated by the function 
where s is the age of the child. Find the domain of the function.
A. {
x is a real number}
B. {
2 ? x ? 13}
C. {
5 ? x ? 15}
D. {
1.1 ? x ? 13}
Mathematics
Determine whether the pair of lines is parallel, perpendicular, or neither.y = - 
x + 7y = 
x + 7
A. Parallel B. Perpendicular C. Neither
Mathematics