Shade the region of feasible solutions for the given constraints. x + y ? 3-3x + y ? -7x ? 0, y ? 0
A. 
B. 
C. 
D. 
Answer: D
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Select the expression that completes the formula below.(xy)0
A. xy B. xk C. yk D. 1 E. 0
Solve the problem. There are currently 52 million cars in a certain country, decreasing exponentially by 3.4% annually. How many years will it take for this country to have 22 million cars? Round to the nearest year.
A. 30 yr B. 100 yr C. 9 yr D. 25 yr
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.f(x) = 2x2 - 3x - 5
A. x = 
, x = 1
B. x = 
, x = -1
C. x = 
, x = 0
D. x = 
, x = -1
Solve the problem.Find the perimeter of the geometric figure.Triangle: sides 4r2 + 2r r3 + r2 + 2 7r + 8
A. r3 + 5r2 + 9r + 10 B. 5r3 + 10r + 10 C. r3 + 4r2 + 10r + 10 D. 5r3 + r2 + 9r + 10