Solve the problem.Find the total surface area of a right circular cone with diameter 18.9 ft and height 
A. 784 ft2
B. 2800 ft2
C. 1120 ft2
D. 3920 ft2
Answer: A
Mathematics
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Multiply.(4 - n)(n + 6)
A. -n2 - 2n - 24 B. -n2 + 2n + 24 C. -n2 - 2n + 24 D. n2 + 2n - 24
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 3-2? 34
A. 
B. 6
C. -729
D. 9
Mathematics
Simplify the expression. Write the result using positive exponents only.r-2
A. r1/2
B. -r2
C. 
D. - 
Mathematics
For the given functions f and g, find the indicated composition.f(x) = -4x + 9, g(x) = 3x + 2(g?f)(x)
A. -12x - 25 B. -12x + 29 C. -12x + 17 D. 12x + 29
Mathematics