Answer the question.There is a commutative property for both addition and multiplication. Is there a commutative property for subtraction? If so, state the property.
A. Yes. x - y = y - x
B. No.
Answer: B
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Write sigma notation.
+ 
+ 
+ 
+ 
A. 
B. 
C. 
D. 
Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.csc 660°
A. -
B. -
C. - 
D. - 
Solve the problem.Martin purchased some municipal bonds yielding 8% annually and some certificates of deposit yielding 11% annually. If Martin's investment amounts to $23,000 and the annual income is $2230, how much money is invested in bonds and how much is invested in certificates of deposit?
What will be an ideal response?
Solve the problem.In a survey of 420 men, 21 men said they planned to exercise more this year. What percent of those surveyed planned to exercise more this year? Round to the nearest whole percent.
A. 42% B. 50% C. 5% D. 105%