Indicate whether the statement is true always, sometimes, or never.To find the quotient 
, multiply numerator and denominator by 5 + 8i.
A. Sometimes
B. Always
C. Never
Answer: B
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Find the polynomial of lowest degree that will approximate F(x) throughout the given interval with an error of magnitude less than than 10-3.F(x) = 
, [0, 0.5]
A. x - 
+ 
- 
B. x + 
+ 
+ 
C. x - 
+ 
- 
D. x - 
+ 
- 
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 5 ? x ? 5, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 125 B. 94 C. 188 D. 376
Solve by using the square root property.-5x2 = -35
A. 8
B. 7, -7
C. 
, - 
D. 
Determine whether the system corresponding to the given augmented matrix is consistent or inconsistent. If it is consistent, give the solution.
A. consistent; x = 2 - 9z, y = -5 + 9z, z any real number or {(x, y, z)|x = 2 - 9z, y = -5 + 9z, z any real number} B. consistent; x = 2 + 9z, y = -5 - 9z, z any real number or {(x, y, z)|x = 2 + 9z, y = -5 - 9z, z any real number} C. consistent; x = 2, y = -5, z = -9; (2, -5, -9) D. inconsistent