Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.What is 8.39 less 1.534?
A. Estimate: 7; exact: 7.866
B. Estimate: 6; exact: 6.856
C. Estimate: 6; exact: 6.866
D. Estimate: 7; exact: 7.856
Answer: B
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Find the linear approximating polynomial for the function centered at a.f(x) = 
, a = 0
A. L(x) = 
x - 4
B. L(x) = 
x - 4
C. L(x) = 
x + 4
D. L(x) = 
x + 4
Solve.
- x = -1
A. - 
B. 
C. 
D. - 
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = -0.3x2 + 12x + 10 B. C(x) = 8x + 6 C. C(x) = 6x + 10 D. C(x) = 7x + 15
Solve the inequality. Graph your solution on a number line, and write your solution in interval notation.6 - 
? -9
A. (-?, 12)
B. (-?, -18] ? [12, ?)
C. [-15, 15] 
D. [-18, 12]