Factor the perfect square trinomial.x2 - 12xy + 36y2
A. prime
B. (x - 6y)(x + 6y)
C. (x + 6y)2
D. (x - 6y)2
Answer: D
Mathematics
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Find the unknown length in the right triangle. Simplify the answer if necessary. 
feet
feet
A. 8
ft
B. 2
ft
C. 10 ft
D. 20
ft
Mathematics
Solve.William earned an extra $9000 last year from a part-time job. He invested part of the money at 8% and the rest at 10%. He made a total of $800 in interest. How much was invested at 10%?
A. $5000 B. $4500 C. $4000 D. $7000
Mathematics
State whether you believe the two variables are correlated. If you believe they are correlated, state whether the correlation is positive or negative. The age of a textbook and how well it is written
A. Positive correlation B. Negative correlation C. Not correlated
Mathematics
Simplify.-11 + 80 ÷ (-8)
A. -9 B. -21 C. 9 D. 21
Mathematics