Which of the following systems has no solution?
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the value of a retirement savings account paying an APR of 6.2% after 40 years (contributions made at the end of each year, including the last year) when the annual contribution is $1680. Round your answer to the nearest cent.
A. $273,440.44 B. $255,894.95 C. $292,073.75 D. $268,557.57 E. $302,681.19
Mathematics
Write an equivalent expression using a commutative or associative law, as indicated.6 + x; commutative
A. x - 6 B. x + 6 C. 6 - x D. -x - 6
Mathematics
Write the equation in polar form.x = 9
A. r = 9 cos ? B. r = 9 sin ? C. r = 9 sec ? D. r = 9 csc ?
Mathematics
Find the product. Assume that all variables represent nonnegative real numbers.(10
+ 
)(4
- 
)
A. 40t + 4
- 10
- 7
B. 40
+ 4
- 10
- 7
C. 40t + 4
+ 10
+ 7
D. 40
+ 4
+ 10
+ 7
Mathematics