Solve the matrix equation.
= 
A. x = 2, y = 1, z = 6
B. x = -1, y = 6, z = 1
C. x = -1, y = 2, z = 1
D. x = 2, y = -1, z = 4
Answer: D
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x2 + y2)i + (x - y)j; C is the rectangle with vertices at (0, 0), (7, 0), (7, 7), and (0, 7)
A. 0 B. 294 C. 392 D. -294
Solve formula for the specified variable.P = 2L + 2W
for L
A. L = P - 2W
B. L = 
C. L = 
D. L = P - W
If the following number is a composite number, write it as a product of prime factors. Otherwise, identify it as prime.231
A. 3 ? 7 ? 11 B. 21 ? 11 C. 7 ? 7 ? 3 D. 3 ? 3 ? 11
Solve.A company that manufactures outdoor rocking chairs makes a daily profit p according to the equation 
where p is measured in dollars and x is the number of rocking chairs made per day. Find the number of rocking chairs that must be made each day to produce a zero profit for the company. Round your answer to the nearest whole number.
A. 2043 rocking chairs or 2657 rocking chairs per day B. 25 rocking chairs per day C. 44 rocking chairs or 50 rocking chairs per day D. 19 rocking chairs or 25 rocking chairs per day