From the given list, identify the proper fractions.
, 
, 
, 
, 
A. 
B. 
, 
, 
C. 
, 
, 
, 
, 
D. 
, 
, 
, 
Answer: D
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Evaluate the integral by making a substitution and then using a table of integrals.
dx
A. (x + 3) tan-1 
- 
+ C
B. 
(x + 3) tan-1 
- 
+ C
C. 
(x + 2) sin-1 
- 
+ C
D. 
(2x + 3) sin-1 
+ 
+ C
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.x2 - 4x + 3 = 0
A. one rational solution B. two nonreal complex solutions C. two irrational solutions D. two rational solutions
Solve the problem.An irrigation sprinkler in a field of lettuce sprays water over a distance of 35 feet as it rotates through an angle of 160°. What area of the field receives water? If necessary, round the answer to two decimal places.
A. 544.44 ft2 B. 48.87 ft2 C. 1710.42 ft2 D. 3420.85 ft2
Provide an appropriate response.Explain the purpose of each "-" sign in these examples. (a) 9 - 3 
(c) -(-7)
What will be an ideal response?