Classify the equality as an example of the commutative property, the associative property, or both.
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This is an example of __________ (commutative property, associative property, both properties).
Fill in the blank(s) with the appropriate word(s).
associative property
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Translate the problem situation to a system of equations. Do not solve.The perimeter of a rectangular building is 208 feet. The width is 56 shorter than the length. What are the dimensions?
A. L = W - 56; 2L + W = 208 B. W = L - 56; L + W = 208 C. W = L - 56; 2L + 2W = 208 D. W = L + 56; 2L + 2W = 208
Solve the problem.When interest is compounded continuously, the balance in an account after t years is given by 
, where P0 is the initial investment and k is the interest rate. Suppose that P0 is invested in a savings account where interest is compounded continuously at 4% per year. Express P(t) in terms of P0 and 0.04.
A. P(t) = P00.04t B. P(t) = P0e4t C. P(t) = P0e0.04t D. P(t) = P0e0.04
Use the two-stage method to solve.Find x1 ? 0 and x2 ? 0 such that x1 + x2 ? 50 x1 + x2 ? 25 2x1 + x2 ? 60and z = 3x1 + 4x2 is maximized.
A. x1 = 10, x2 = 40, z = 190 B. x1 = 25, x2 = 25, z = 175 C. x2 = 50, x1 = 0, z = 200 D. x1 = 50, x2 = 0, z = 150
Find the solution set of the system.
a. 
b. 
c. 
d. 