Solve the inequality. Use algebra to solve the corresponding equation.x2 - 4x - 21 < 0
A. (-?, -3)
B. (-?, -3) ? (7, ?)
C. (7, ?)
D. (-3, 7)
Answer: D
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Exponential regression always provides an exact fit for data.
Answer the following statement true (T) or false (F)
Provide an appropriate response.Before opening a new dealership, an auto manufacturer wants to gather information about car ownership and driving habits of the local residents. The marketing manager of the company randomly selects 1000 households from all households in the area and mails a questionnaire to them. Of the 1000 surveys mailed, she receives 145 back. Is this study biased? Explain.
What will be an ideal response?
Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.
= 1
A. Associative B. Inverse C. Identity D. Commutative
Solve the problem.A truck rental company rents a moving truck one day by charging $39 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 120 miles?
A. C(x) = 0.09x + 39; $40.08 B. C(x) = 0.09x - 39; -$28.20 C. C(x) = 0.09x + 39; $49.80 D. C(x) = 39x + 0.09; $4,680.09