Simplify the expression.?-24? + ?20 + 16?
A. 64
B. 12
C. 28
D. 60
Answer: D
Mathematics
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State the period of the function and graph. cos 
A. Period 6
B. Period 6
C. Period 6
D. Period 6
Mathematics
Find 
and 
.f(x, y) = 4x - 6y2 - 9
A. 
= 4x; 
= -12y
B. 
= -12y; 
= 4
C. 
= 4; 
= -12y
D. 
= -5; 
= -12y - 9
Mathematics
Find the area of the triangle.
A. 882 cm2 B. 1533 cm2 C. 1008 cm2 D. 766.5 cm2
Mathematics
Find the product. Simplify before performing the multiplication.
? 
? 
A. 
B. 
C. 
D. 
Mathematics