Perform the indicated operation. Simplify if possible.
+ 
A. - 
B. - 
C. 
D. 
Answer: A
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Solve the problem.You are asked to make some circular cylinders, each with a cross-sectional area of src="https://sciemce.com/media/4/ppg__as0610192007__f1q246g5.jpg" alt="" style="vertical-align: -17.0px;" /> and look for the interval in which you must hold x to make 
To do this, you need to know how much deviation from the ideal cylinder diameter of 
cm you can allow and still have the area come within 
of the required 
To find out, let 
What interval do you find?
A. 
B. 
C. 
D. 
Write the given Chinese numeral as a Hindu-Arabic numeral.
A. 709 B. 7900 C. 7090 D. 790
Determine the domain and the range of the function.f(x) = -x2 + 4x + 5
A. domain: all real numbers range: all real numbers B. domain: all real numbers range: {y|y ? 9} C. domain: {x|x ? -2} range: {y|y ? 9} D. domain: all real numbers range: {y|y ? -9}
Find an equation for the ellipse described.Center at (0, 0); focus at (0, 5); vertex at (0, 7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1