Which property of the real numbers is illustrated by the following statement: 6x + 5x = (6 + 5)x
Commutative property of multiplication
Associative property of addition
Associative property of multiplication
Distributive property
Fernando's motorboat can travel 30 mi/h in still water. If the boat can travel 9 miles downstream in the same time it takes to travel 1 mile upstream, what is the rate of the river's current?
21 mi/h
18 mi/h
24 mi/h
19 mi/h
Fill in the blanks with > or < to make the resulting statement true: 2 ___ –9 and –2(2) ___ –2(–9)
, >

>, <
Find the midpoint of the line segment with endpoints (–5, –2) and (7, 6).
(1, 2)
(2, 4)
(1, 4)
(2, 2)
Give a description of the indicated subset of the plane in terms of quadrants: {(x, y) | x < 0, y > 0}
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
Indicate whether the set defines a function. If it does, state the domain and range of the function. {(1, 7), (2, 7), (3, 7), (4, 7)}
A function; Domain = {7}; Range = {7}
A function; Domain = {7}; Range = {1, 2, 3, 4}
A function; Domain = {1, 2, 3, 4}; Range = {7}
Not a function
A farmer wants to enclose a rectangular field along a river on three sides. If 1,200 feet of fencing is to be used, what dimensions will maximize the enclosed area?
600 ft (parallel to the river) by 300 ft
300 ft (parallel to the river) by 300 ft
300 ft (parallel to the river) by 600 ft
600 ft (parallel to the river) by 600 ft
If you invest $3,000 in an account paying 3% compounded continuously, how much money will be in the account at the end of 6 years?
$3,596.79
$3,591.65
$3,601.63
$3,604.97
Use a calculator to find log 89,014. Round your answer to four decimal places.
4.0588
4.1978
4.9495
4.5228
Bob invested $12,000, part at 9% and part at 5%. If the total interest at the end of the year is $880, how much did he invest at 9%?
$5,000
$7,000
$8,000
$6,000


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