Solve the problem.A student is told to work any 6 out of 10 questions on an exam. In how many different ways can he complete the exam? (The correctness of his answers has no bearing.)
A. 210
B. 5040
C. 24
D. 1,000,000
Answer: A
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
Find the value or values of c that satisfy the equation 
= f'(c) in the conclusion of the Mean Value Theorem for the function and interval.f(x) = x2 + 3x + 1, [-3, -2]
A. - 
, 
B. 0, - 
C. - 
D. -3, -2
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the gradient field F of the function f.f(x, y, z) = ln (x9 + y8 + z6)
A. F = 
i + 
j + 
k
B. F = 
ln ( y8 + z6)i + 
ln (x9 + z6)j + 
ln ( x9 + y8)k
C. F = 
i + 
j + 
k
D. F = 
i + 
j + 
k
Mathematics