Let u represent , v represent , and w represent . Solve first for u, v, and w. Then solve the system of equations. -  +  = - 

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A. (-9, 5, -3)
B. (-9, 5, 3)
C.
D.

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Answer: A

Mathematics

Use the trapezoidal rule to find the area.A pool was measured every 1.50 yd. The distances across the pool (in yards) are given in the diagram. Find the area.

A. 33.2 yd2 B. 35.5 yd2 C. 50.4 yd2 D. 53.8 yd2

An objective function and a system of linear inequalities representing constraints are given. Graph the system of inequalities representing the constraints. Find the value of the objective function at each corner of the graphed region. Use these values to determine the maximum value of the objective function and the values of x and y for which the maximum occurs.Objective Functionz = 7x + 9yConstraintsx ? 0 0 ? y ? 5 2x + 3y ? 12 2x + 3y ? 20

A. Maximum: 59; at (2, 5) B. Maximum: 70; at (10, 0) C. Maximum: -28; at (4, 0) D. Maximum: 42; at (6, 0)

For the given initial investment, simple interest rate, and time of investment, find the total value of the investment. Round to the nearest cent.$6000 at 4% for 18 months

A. $9600.00 B. $6360.00 C. $10,320.00 D. $360.00

Solve the problem.A certain product has supply and demand functions given by p = 3q + 21 and p = 164 - 8q, respectively, where p is the price in dollars and q is the quantity supplied or demanded at price p. What price gives market equilibrium?

A. $60 B. $39 C. $18 D. $13