Find the limit L for the given function f, the point x0, and the positive number ?. Then find a number ? > 0 such that, for all x, 
f(x) = 
, x0 = 7, ? = 0.4
A. L = 4; ? = 1.56
B. L = 4; ? = 0.78
C. L = 4; ? = 7.78
D. L = 4; ? = 0.64
Answer: B
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Solve the equation for y.5x + 8y - 4z = 11
A. y = 
B. y = 4z - 5x + 3
C. y = 
D. y = 
The graph of a function f is given. Use the graph to answer the question.For what values of x is f(x) < 0?
A. (-?, -15) B. [-25, -15), (17.5, 25) C. (-15, 17.5) D. (-15, ?)
Reduce the rational expression to lowest terms.
A. 
B. 
C. 
D. 
The coaxial power cable has a central wire with radius 
centimeters. It is insulated from a surrounding shield with inside radius 
centimeters. The maximum voltage the
cable can withstand is called the breakdown voltage V of the insulation. V is given by the formula
?
?
where E is the dielectric strength of the insulation. If 
volts/centimeter, find V.
?
?
Please enter answer as a number without the units, rounded to the nearest hundred.
Fill in the blank(s) with the appropriate word(s).