Solve the problem.The formula for the perimeter of a rectangle is P = 2L + 2W. If P = 50 and W = 5, find the value of L.
A. 18
B. 19
C. 20
D. 17
Answer: C
Mathematics
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Solve the problem.Suppose that f is continuous and that 
and 
Find 
A. -48 B. -6 C. -8 D. 48
Mathematics
Write one or more inequalities that describe the set of points.The slab bounded by the planes x = -8 and x = 7 (planes included)
A. -8 ? x ? 7 B. x = -8 and x = 7 C. -? < y < ? and -? < z < ? D. x ? -8 and x ? 7
Mathematics
Add or subtract the rational expressions. Be sure to express your answer in simplest form.
A. 
B. 
C. 
D. 
E. 
Mathematics
Find all values of x for the given function where the tangent line is horizontal.f(x) = 
A. ± 
B. 0
C. ± 
D. 0, ± 
Mathematics