Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log4 40 - log4 10
A. 4
B. 10
C. 40
D. 1
Answer: D
Mathematics
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Write the integral that gives the surface area generated when the curve is revolved about the x-axis. Do not simplify.y = tanx on 
A. 
dx
B. 2?
dx
C. 2?
dx
D. 
dx
Mathematics
Find an antiderivative of the given function.f(x) = 
x5/7
A. 
x12/5
B. 
x12/7
C. 
x12/5
D. 
x12/7
Mathematics
The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 1/5, x = -4
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics
Find the nonreal complex solutions of the equation.5x2 - 5x + 7 = 0
A. 
B. 
C. 
D. 
Mathematics