Perform the indicated operations. Give the answer in lowest terms.
- 
+ 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.The length ? of a metal rod used in manufacturing cars must not differ from the standard s by more than 0.3 inches. The manufacturing engineers express this as 
Find the limits of ? if the standard s is 20.3.
A. 20.6 ? ? ? 20.9 B. ? ? 20 or ? ? 20.6 C. 20 ? ? ? 20.6 D. ? ? 20.6 or ? ? 20.9
Solve the problem.Sue wants to put a rectangular garden on her property using 60 meters of fencing. There is a river that runs through her property so she decides to increase the size of the garden by using the river as one side of the rectangle. (Fencing is then needed only on the other three sides.) Let x represent the length of the side of the rectangle along the river. Express the garden's area as a function of x.
A. A = 30x2 - x
B. A = 31x - 2x2
C. A = 30x - 
x2
D. A = 29x - 
x2
Let A = {1, 3, 5, 7}; B = {5, 6, 7, 8}; C = {5, 8}; 
and 
Determine whether the given statement is true or false.? ? A
A. True B. False
The vertices of a triangle are given. Use the distance formula to find what kind of triangle each is. A sketch of the graph might be helpful.
Note: An isosceles triangle has two equal sides. An equilateral triangle has three equal sides. A right triangle satisfies the Pythagorean Theorem. (6, 7), (4, 4), (6, 1) A) equilateral isosceles right B) isosceles C) right, not isosceles D) equilateral E) equilateral right