Find the derivative.f(x) = 3x4 + 7x3 - 8
A. 3x3 + 7x2
B. 12x4 + 21x3 - 8
C. 12x3 + 21x2 - 8
D. 12x3 + 21x2
Answer: D
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Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = x2 - 5x + 1
A. x-intercepts: (-1, 0) and (5, 0)
B. x-intercepts: none
C. x-intercepts: 
D. x-intercepts: 
Find the exact value of the product.sin 
sin 
A. 
B. 
C. 
D. 
Solve.The net income y (in millions of dollars) of Pet Products Unlimited from 1997 to 1999 is given by the equation 
where x represents the number of years after 1997. Assume this trend continues and predict the year in which Pet Products Unlimited's net income will be $466 million.
A. 2005 B. 2002 C. 2004 D. 2003
Solve the problem.Find which is the better buy (lower cost per ounce) by finding each unit price rounded to three decimal places if necessary. Frozen orange juice:$0.84 for 14.5 ounces $1.79 for 21.0 ounces
A. $0.84 for 14.5 ounces B. $1.79 for 21.0 ounces C. Both cost the same per ounce.