Solve the problem.Suppose a cost-benefit model is given by 
where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 95% to the nearest dollar.
A. $3135
B. $3300
C. $19,000
D. $62,700
Answer: D
Mathematics
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In each group of four products, one is wrong. Use estimation to determine which product is incorrect.
A. 140 × 42 = 5880 B. 54 × 362 = 19,658 C. 548 × 87 = 47,676 D. 268 × 56 = 15,008
Mathematics
Express the given vector as a linear combination of the unit vectors i and j.u = 
A. 12i + 5j B. 12i - 5j C. 5i - 12j D. 5i + 12j
Mathematics
Graph the polynomial function. f(x) = 
- 
x4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose that f(x) = 3x. If f(x) = 
, what is x?
A. 4 B. -4 C. 3 D. -3
Mathematics