Solve the equation.7x + 8 = 3x - 28
A. {-9}
B. {7}
C. {9}
D. {-7}
Answer: A
Mathematics
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Solve the problem.Find the moment of inertia about the x-axis of a thin plane of constant density 
bounded by the coordinate axes and the line 
.
A. 504
B. 588
C. 686
D. 
Mathematics
Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(2) = 6, u '(2) = 2, v(2) = -3, v '(2) = -4.
at x = 2
A. 
B. 2
C. - 
D. - 6
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(4 + 3i)(4 - 3i)
A. 16 - 9i B. 7 C. 16 + 9i D. 25
Mathematics
Find the standard form equation for the circle.Center (-7, -5), radius 6
A. (x + 5)2 + (y + 7)2 = 6 B. (x - 5)2 + (y - 7)2 = 6 C. (x + 7)2 + (y + 5)2 = 36 D. (x - 7)2 + (y - 5)2 = 36
Mathematics