Find the domain of the composite function f ? g.f(x) = 3x + 6; g(x) = x + 7
A. {x 
B. {x 
C. {x 
D. {x 
Answer: B
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5
A. 
= 2yex2; 
= 2x; 
= 
= 2xex2
B. 
= 2yex2; 
= 2x; 
= 
= 2y + 2xex2
C. 
= 2yex2(1 + 2x2); 
= 2x; 
= 
= 2y + 2xex2
D. 
= yex2(1 + 2x2); 
= x; 
= 
= y + xex2
Mathematics
Write the sentence as a mathematical statement.Thirteen is not equal to twenty-eight.
A. 13 = 28 B. 13 ? 28 C. 13 ? 28 D. 13 ? 28
Mathematics
Solve the problem.Find the sum of the first 6 terms of the arithmetic sequence 2, 4, 6, . . . .
A. 30 B. 36 C. 49 D. 42
Mathematics
Factor completely. If the polynomial is prime, so state.-24x3 + 38x2 - 8x
A. -2(3x2 - 4)(4x - 1) B. x(3x - 4)(-8x + 2) C. x(-6x + 8)(4x - 1) D. -2x(3x - 4)(4x - 1)
Mathematics