Simplify by rationalizing the denominator. Write your answer in a + bi form.
A. 
+ 
i
B. 
- 
i
C. 
+ 
i
D. 
+ 
i
Answer: B
Mathematics
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Solve.Peter is making monthly mortgage payments of $868 for his home mortgage. He noticed on his monthly statement that $843 is used to pay off the interest charge. Only $25 is used to pay off the principal. What percent of his monthly mortgage payment is used to pay off the interest charge? Round to the nearest tenth of a percent, if necessary.
A. 0.97% B. 97.1% C. 9.7% D. 0.0097%
Mathematics
Perform the indicated operation.(7x - 9y)2
A. 49x2 - 126xy + 81y2 B. 49x2 + 81y2 C. 7x2 + 81y2 D. 7x2 - 126xy + 81y2
Mathematics
Find the slope of the specified line.y = -5
A. -5 B. 0 C. undefined D. 5
Mathematics
Find an equation of the tangent line to the curve 
at the point (1, ?).
What will be an ideal response?
Mathematics