Solve the problem.Sam drives a distance of m miles to work traveling at an average speed of x mph. On the way home, he drives 3 mph faster. The expression 
+ 
, represents the total amount of time in hours it takes for Sam to drive to work and back. Represent this amount of time as a single rational expression.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Change the complex number to rectangular form.
A. -0.90 - 2.69j B. -0.90 + 2.69j C. -0.04 + 2.84j D. -2.69 - 0.90j
Mathematics
Factor the trinomial, if possible.8y2 + 18y + 9
A. (2y + 3)(4y + 3) B. (8y + 3)(y + 3) C. (8y + 1)(y - 9) D. (2y - 3)(4y - 3)
Mathematics
State the domain of the rational function.f(x) = 
A. (-?, ?) B. (-?, -4) ? (-4, 2) ? (2, ?) C. (-?, - 1) ? (- 1, 1) ? (1, ?) D. (-?, -2) ? (-2, 4) ? (4, ?)
Mathematics
Solve the problem.The number of books in a small library increases according to the function 
where t is measured in years. How many books will the library have after 4 years?
A. 4279 books B. 3298 books C. 1887 books D. 4345 books
Mathematics