Unit Test — Unit test Answers
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21
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Which of the following is the graph of ?
A
On a coordinate plane, an absolute value curve opens up and to the right in quadrant 4. It starts at x = 3.
B
On a coordinate plane, an absolute value curve opens down and to the left in quadrants 1 and 2. It starts at x = 3.
C
On a coordinate plane, an absolute value curve opens down and to the left in quadrant 2. It starts at x = negative 3.
D
On a coordinate plane, an absolute value curve opens up and to the right in quadrants 3 and 4. It starts at x = negative 3.
22
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What value of c makes the equation true? Assume and
A
c = 12B
c = 16C
c = 64D
c = 8123
Which expression is equivalent to ? Assume and .
A
2 a cubed (RootIndex 4 StartRoot 9 b cubed EndRoot)
B
2 a Superscript 4 Baseline b (RootIndex 4 StartRoot 18 EndRoot)
C
6 a cubed (RootIndex 4 StartRoot 3 b cubed EndRoot)
D
12 a Superscript 6 Baseline b (RootIndex 4 StartRoot b EndRoot)
24
The speed that a tsunami can travel is modeled by the equation , where S is the speed in kilometers per hour and d is the average depth of the water in kilometers. What is the approximate depth of water for a tsunami traveling at 200 kilometers per hour?
A
0.32 kmB
0.75 kmC
1.12 kmD
3.17 km25
The formula gives the length of the side, s, of a cube with a surface area, SA. How much longer is the side of a cube with a surface area of 1,200 square inches than a cube with the surface area of 768 square inches?
A
in.
B
in.
C
in.
D
in.
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