Solve the problem.A steel company produces two types of machine dies, part A and part B. The company makes a 
profit on each part A that it produces and a 
profit on each part B that it produces. Let 
number of part A produced in a week and 
number of part B produced in a week. Write the objective function that describes the total weekly
profit.
A. z = 6x + 2y
B. z =2(x - 6) + 6(y - 2)
C. z = 8(x + y)
D. z = 2x + 6y
Answer: D
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For the given rectangular equation, write an equivalent polar equation.x = 7
A. r = 7 sin ? B. r = 7 cos ? C. r = 7 csc ? D. r = 7 sec ?
Solve the problem.There are 9 horses in a race. In how many ways can the first three positions of the order of the finish occur? (Assume there are no ties.)
A. 82 B. 508 C. 504 D. 84
Determine if the ordered pair is a solution to the given inequality.3x + 4y ? 8; 
A. Yes B. No
Solve the problem.Suppose that certain bacteria can double their size and divide every 30 minutes. Write a recursive sequence that describes this growth where each value of n represents a 30-minute interval. Let a1 = 426 represent the initial number of bacteria present.
A. a1 = 426; an = 
an-1 for n > 1.
B. a1 = 426; an = 2 an-1 for n > 1.
C. an = 2 a1 for all values of n.
D. a1 = 426; an = 2 an+1 for n > 1.