Determine whether the function is a solution of the wave equation.w = cos(7ct) sin(7x)
A. Yes
B. No
Answer: A
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Add or subtract and write the resulting polynomial in descending order of degree.
- 
A. 
t3 + 
t2 - 
B. 
t3 + 
t2 - 
C. 
t3 + 
t2 - 
D. 
t3 + 
t2 + 
Solve the application using the percent equation. Answer with a complete sentence.17 of those that Stephen called, agreed to donate money. This amounted to 4% of those that he called. How many people did he call?
A. Stephen called 4250 people. B. Stephen called 425 people. C. Stephen called 475 people. D. Stephen called 415 people.
Provide an appropriate response.Determine the present value of $4000 due in 5 years if the interest rate is 10% compounded semiannually.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.The Percentage can refer to the partial amount or portion of the rate.
A. True B. False