Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.3 x + 7 = 4
A. -0.72
B. 7.79
C. -5.74
D. 1.64
Answer: C
Mathematics
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Solve the problem.Find an equation for the level curve of the function f(x, y) = 
dt that passes through the point 
.
A. y2 - x2 = 80 B. y2 - x2 = 48 C. y2 - x2 = -48 D. y2 + x2 = 80
Mathematics
Change the order of integration and evaluate the integral.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Determine if the given function y = f(x) is a solution of the accompanying differential equation.Differential equation: 6xy' + 6y = cos xInitial condition: y(?) = 0Solution candidate: y = 
A. No B. Yes
Mathematics
Provide an appropriate response.The polynomial 18a5 - 13a3 is called a ? .
Fill in the blank(s) with the appropriate word(s).
Mathematics