Solve the initial value problem.2 
- 4xy = 8x; y(0) = 11
A. y = 2 + 11ex2
B. y = -2 + 13e-x2
C. y = -2 + 13ex2
D. y = -1 + 12ex2
Answer: C
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = ln (x4 + y7 + z7)
A. F = 
ln ( y7 + z7)i + 
ln (x4 + z7)j + 
ln ( x4 + y7)k
B. F = 
i + 
j + 
k
C. F = 
i + 
j + 
k
D. F = 
i + 
j + 
k
Mathematics
Evaluate the expression.(-4)-1
A. -4
B. - 
C. 
D. 4
Mathematics
Solve the problem.Evaluate 6rh + 6r2, for r = 7.6 and h = 12.8.
A. 930.24 B. 933.84 C. 423.36 D. 629.28
Mathematics
Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 + 5x + c
A. 10; (x + 5)2
B. 
; 
2
C. - 
; 
2
D. 
; 
2
Mathematics