Provide an appropriate response.A student was asked to find ordered pairs that solve the system of equations x + 2y = 3 -2x - 4y = -6.The student claims that (1, 1) and (-1, 2) are the only solutions. Is the student correct?
A. Yes
B. No
Answer: B
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Find the effective rate corresponding to the given nominal rate. Round your answers to the nearest hundredth.
?
10% / year compounded semiannually
?
__________%
?
3% / year compounded quarterly
?
__________%
What will be an ideal response?
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.Sales tax of $12 is charged on an item that costs $2000. What percent sales tax is charged?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Solve. Round to the nearest thousandth, if necessary.13x = 23
A. {1.222} B. {1.57} C. {0.818} D. {1.769}
Solve the problem.The sum of the squares of two numbers is 145. The sum of the two numbers is -1. Find the two numbers.
A. -8 and 9 B. -9 and 8; or -8 and 9 C. -9 and 8 D. 8 and 9; or -9 and -8