Find the value of the expression using the given values.-10xy + 7y - 7x = 4, y = 1
A. 40
B. -40
C. -33
D. -26
Answer: B
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Suppose 
. If the limiting value of z is 4, what is the limiting value of w?
?
A. 11 B. 0 C. 7 D. None of the above
Provide an appropriate response.A manufacturer of blended juices will also bottle pure juices for one supermarket chain. This week he bottles cherry, grape, and cranberry juice. Fill in the matrix for the gallons of each juice needed to produce 1 gallon of juice for each of the 3 pure juices.
What will be an ideal response?
Solve.Assume that in 1985, the annual consumption of pork was about 55 lb per person and that in 1997, it was about 38 lb per person. In addition, assume that consumption is decreasing according to the exponential decay model. Find the value k, and write an exponential function that describes pork consumption after time t, in years. (Round decimals to three places.)
A. k = 0.031; C(t) = 55e-0.031t, where t is the number of years since 1985. B. k = -0.031; C(t) = 55e-0.031t, where t is the number of years since 1997. C. k = 0.031; C(t) = e-0.031t, where t is the number of years since 1985. D. k = 0.303; C(t) = 55e0.303t, where t is the number of years since 1985.
Sketch the graph.
f(x) = x² – 2x