Multiply and simplify. Assume that all variables represent positive real numbers.(5 - 
)(2 - 
)
A. 10 - 7
- x
B. 10 - 7
+ x
C. 10 - 6x
D. 10 - 6
Answer: B
Mathematics
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Find the slope of the polar curve at the indicated point.r = 9 + 8 sin ?, ? = 0
A. 
B. - 
C. 
D. - 
Mathematics
Write the whole number in word form.128,615
A. One hundred twenty thousand, eighty-six hundred, fifteen B. One hundred twenty-eight million, six hundred fifteen C. Six hundred fifteen thousand, one hundred twenty-eight D. One hundred twenty-eight thousand, six hundred fifteen
Mathematics
Decide whether or not the set is closed under addition.{0, 1}
A. Closed B. Not closed
Mathematics
Find the simple interest and amount for the value of principal P, rate r per year, and time t.P = $6750, r = 5.5%, t = 5 years and 9 months
A. $2134.69, $8884.69 B. $2134.69, $4615.31 C. $21,346.88, $28,096.88 D. $213.47, $6963.47
Mathematics