Determine whether the given function satisfies Laplace's equation.f(x, y) = cos (x) sin (-y)
A. Yes
B. No
Answer: B
Mathematics
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Determine the number of significant digits in the given approximate number.0.070080
A. 6 B. 5 C. 3 D. 2
Mathematics
Evaluate the integral.
dz
A. - 
csc 
+ C
B. csc 
+ C
C. -csc 
+ C
D. -cot 
+ C
Mathematics
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.x+ 3y+ 4z= -14 2y+ 3z= -7? z= -3
A. (-3, 1, -5) B. (-5, -3, 1) C. (-5, 1, -3) D. No solution
Mathematics
Solve the problem.How many different license plates can be made using 2 letters followed by 4 digits selected from the digits 0 through 9, if letters and digits may be repeated?
A. 260 B. 6,760,000 C. 8 D. 36
Mathematics