Find the product.(m + n)(m - n)
A. m2 - 2mn - n2
B. m2 - mn + n2
C. m2 + n2
D. m2 - n2
Answer: D
Mathematics
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Establish the identity.
= 
What will be an ideal response?
Mathematics
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).
A. 
B. 
C. 
D. 
Mathematics
The following table shows the earnings for the Juarez family last year. Solve the problem.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400The family saved 
of their total income each month. How much savings did they have at the end of the year?
A. $1776 B. $1260 C. $1509 D. $1620
Mathematics
Perform the indicated operation.- 
(-12)
A. - 
B. 
C. - 
D. 
Mathematics