What is the domain of f(x)? What is its range?f(x) = 
+ 5
A. Domain: (-?, -7) ? (-7, ?); range: (-?, 5)
B. Domain: (-?, -5) ? (-5, ?); range: (-?, 0) ? (0, ?)
C. Domain: (-?, 5) ? (5, ?); range: (0, ?)
D. Domain: (-?, 7) ? (7, ?); range: (5, ?)
Answer: D
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Answer each question appropriately.Suppose that 
= 15. Find 
, if f is even.
A. -75 B. 75 C. -15 D. 15
The percent of mothers who work outside the home and have children younger than age 6 yr is approximated by the function 
where t is measured in years, with 
corresponding to the beginning of 1980.
?
Compute 
. Round your answer to six decimal places.
?
A. 
per year in the second power
B. 
per year in the second power
C. 
per year in the second power
D. 
per year in the second power
E. 
per year in the second power
Determine the domain and range of the relation.{(10, -3), (10, -8), (-3, 2), (-4, 3), (-8, 9)}
A. Domain: {10, -10, -3, -8, -4}; Range: {-8, 2, 9, 3, -3} B. Domain: {10, 10, -3, -8, -4}; Range: {-8, 2, 9, 3, -3} C. Domain: {10, -3, -8, -4}; Range: {-8, 2, 9, 3, -3} D. Domain: {-8, 2, 9, 3, -3}; Range: {10, 10, -3, -8, -4}
Solve the equation.
+ 
= -1
A. 1
B. 
C. 0
D. No solution