Answer the question.There is an associative property for both addition and multiplication. Is there an associative property for subtraction? If so, state the property.
A. Yes. x - (y - z) = (x - y) - z
B. No.
Answer: B
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Solve the indicated systems of equations graphically.The power developed in an electric resistor is i2R, where i is the current and R is the the resistance. If a first current passes through a 
resistor and a second current passes through a 
resistor, the total power produced is 15 W. If the resistors are reversed, the total power produced is 18 W. Find the currents (in A) if 
A. 1.8 A, 0.6 A B. 5.5 A, 1.3 A C. 0.9 A, 307.0 A D. 0.6 A, 163.9 A
Use algebraic and/or graphical methods to solve the inequality.2x3 + 9x2 - 27x - 54 > 0
A. x < -6 or - 
< x < 3
B. -6 < x < - 
or x > 3
C. x ? -6 or - 
? x ? 3
D. -6 ? x ? - 
or x ? 3
Solve the simple interest problem. Round to the nearest cent.If Janus makes an investment of $70,000 at a simple interest rate of 5% for 3 years, then what is the overall amount of money that she will have at the end of the 3-year period?
A. $80,500.00 B. $80,442.43 C. $80,700.00 D. $80,400.00
Provide an appropriate response.Use Lagrange multiplier to maximize f(x, y, z) = xy + z subject to x2 + y2 + z2 = 1.
A. f(1, 1, 1) = 1 B. f(1, 1, 0) = 1 C. f(0, 0, 1) = 1 D. f(0, 1, 0) = 1