Add or subtract. Simplify your answer to lowest terms.
+
- 
A. x3 - 7x2
B. x2
C. x2 + 1
D. x2 + x - 7
Answer: C
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Find the distance between the pair of points. Give an exact answer.(1, 4) and (-7, -3)
A. units
B. 56 units
C. units
D. 113 units
State the domain and range of the one-to-one functions f and f-1.f(x) = 9x - 4
A. f(x): domain (-?, ?), range (-?, -4); f-1(x): domain (-?, ?), range (-4, ?) B. f(x): domain (9, ?), range (-4, ?); f-1(x): domain (-?,9), range (-?, -4) C. f(x): domain (9, ?), range (-?, ?); f-1(x): domain (-?,9), range (-?, ?) D. f(x): domain (-?, ?), range (-?, ?); f-1(x): domain (-?, ?), range (-?, ?)
For the given function, find the points on the graph at which the tangent line has slope 1.y = x3 - 2x2 + 4x + 1
A. and (3, 4)
B. (0, 3) and (3, 3)
C. and (3, 4)
D. (1, 3) and (3, 4)
Solve the problem.A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge$8.80Per therm service charge1st 25 therms$0.6686/thermOver 25 therms$0.85870/thermWhat is the charge for using 25 therms in one month?What is the charge for using 45 therms in one month?Construct a function that gives the monthly charge C for x therms of gas.
What will be an ideal response?