For the pair of functions, find the indicated domain.f(x) = 
, g(x) = x + 1Find the domain of f ? g.
A. (-?, ?)
B. (-?, -4) ? (-4, ?)
C. (-?, -5) ? (-5, ?)
D. (-?, -5] ? [-5, ?)
Answer: C
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Find the area under the curve of the function on the stated interval. Do so by dividing the interval into n equal subintervals and finding the area of the corresponding circumscribed polygon.f(x) = 2x2 + x + 3 from x = -2 to x = 1; n = 6
A. 7 B. 13 C. 11 D. 9
?Which of the following is not true about integers and number lines? ?
A. ?Integers includes the set of all natural numbers, their opposites, and zero. B. ?The number line, used to illustrate integers, include zero, negative numbers on the left of zero, and positive numbers on the right of zero. C. ?Zero is neither positive nor negative. D. ?Negative integers and negative numbers are equivalent. E. ?All whole numbers are integers.
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 
Decide whether or not the ordered pair is a solution to the equation.3x - 4y = 18; (2, 3)
A. Yes B. No