Find an equation for the line with the given properties.Slope undefined; containing the point (6, -3)
A. x = 6
B. x = -3
C. y = -3
D. y = 6
Answer: A
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Decide whether or not the given equation is an identity.
= sin ? tan ?
A. Yes B. No
Find the values of x for which the expression is a real number.
A. (-?, 20) B. [20, ?) C. (20, ?) D. (-?, 20]
Divide. Write the quotient in lowest terms.
÷ 
A. 
B. 4
C. 
D. 
Solve the problem.A steel company produces two types of machine dies, part A and part B and is bound by the following constraints:? Part A requires 1 hour of casting time and 10 hours of firing time. ? Part B requires 4 hours of casting time and 3 hours of firing time.? The maximum number of hours per week available for casting and firing are 100 and 70, respectively.? The cost to the company is $0.75 per part A and $3.00 per part B. Total weekly costs cannot exceed $45.00.Let x = the number of part A produced in a week and 
number of part B produced in a week. Write a system of three inequalities that describes these constraints.
A. 
B. 
C. 
D. 