Solve the system using the inverse method.
A. x = -3, y = 1
B. x = 3, y = -1
C. x = 1, y = -3
D. x = -1, y = 3
Answer: C
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Determine whether the given function satisfies a Laplace equation.f(x, y) = e3ysin 3x
A. Yes B. No
Solve.The amount of simple interest earned on an investment over a fixed amount of time is jointly proportional to the principle invested and the interest rate. A principle investment of $2400.00 with an interest rate of 5% earned $360.00 in simple interest. Find the amount of simple interest earned if the principle is $4000.00 and the interest rate is 3%.
A. $216.00 B. $600.00 C. $360.00 D. $36,000.00
Evaluate the expression for the given values. If necessary, round to the nearest tenth.6x + 7y + 6; x = 0, y = 5
A. 36 B. 13 C. 41 D. 47
Find csc ? if 
and 
.
What will be an ideal response?