Simplify.
A. 7
B. 7
C. 
D. 
Answer: C
Mathematics
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Determine whether the given function satisfies Laplace's equation.f(x, y, z) = 9x + 9y3z2
A. Yes B. No
Mathematics
Solve the differential equation.x
+ 2y = 7 - 
, x > 0
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
Find the value of df-1/dx at x = f(a).f(x) = 
x + 8, a = 1
A. 
B. 4
C. 
D. 8
Mathematics
Solve the problem.A 10-pound puppy is gaining weight at a rate of 
lb per week. How much more time will it take for the puppy's weight to exceed 32
lb?
A. more than 17 week(s) B. more than 34 weeks C. more than 64 weeks D. more than 35 weeks
Mathematics