Divide the expression. You may want to use the property 
= 
+ 
. Do not use a calculator.
A. 
x - 
B. 4x - 1
C. 4x - 5
D. 
x2 - 5
Answer: A
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane; range: all real numbers; level curves: parabolas 
B. Domain: all points in the xy-plane excluding x = 0; range: all real numbers; level curves: parabolas 
C. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: parabolas 
D. Domain: all points in the xy-plane excluding x = 0; range: real numbers z ? 0; level curves: parabolas 
Provide an appropriate response.Use the Intermediate Value Theorem to prove that 4 sin x = x has a solution between 
and ?.
What will be an ideal response?
Find the sum.Find the sum of the first 30 terms of the arithmetic sequence: 7, 14, 21, 28, . . .
A. 3360 B. 217 C. 3265 D. 3255
Verify the identity.
= cot y - cot x
What will be an ideal response?