According to automobile association of a country, on March 27, 2009, the national average price per gallon of regular unleaded (87-octane) gasoline was $2.07, and the price of premium unleaded (90-octane) gasoline was $2.25. Write an objective function that models the cost of the blend of mid-grade unleaded gasoline (89-octane).
?
A. C = 2.25x - 2.07y
B. C = 87x + 89y
C. C = 2.07x + 2.25y
D. C = 87x + 90y
E. C = 90x + 89y
Answer: C
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A submarine was traveling 1,700 feet below the ocean's surface when the radar system warned of an impending collision with another sub. The captain ordered the navigator to dive an additional 350 feet and then level off. Find the depth of the submarine after the dive.__________ feet below the ocean's surface
Fill in the blank(s) with the appropriate word(s).
Determine the monthly payment for the installment loan. Use the installment payment formula 
A. $870.41 B. $148.10 C. $75.90 D. $248.90
Divide. Write with positive exponents.
A. 9x4 - 9x3 + 1
B. 9x4 - 9x + 1x2
C. 9x2 - 9x + 1
D. 
x4 - 
x3 + 
Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 3x4 - 5x3 + 14x2 - 20x + 8
A. -4, -1, 1, 
; f(x) = (x - 1)(3x - 2)(x + 1)(x + 4)
B. -4, -1, 1, - 
; f(x) = (x - 1)(3x + 2)(x + 1)(x + 4)
C. 1, 
; f(x) = (x - 1)(3x - 2)(x2 + 4)
D. 4, 
; f(x) = (x - 4)(3x - 2)(x2 + 1)