Unit Test — Unit test Answers
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21
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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 km22
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Which equation is the inverse of y = 9x2 – 4?
A
y = StartFraction plus-or-minus StartRoot x + 4 EndRoot Over 9 EndFraction
B
y = plus-or-minus StartRoot StartFraction x Over 9 EndFraction + 4 EndRoot
C
y = StartFraction plus-or-minus StartRoot x + 4 EndRoot Over 3 EndFraction
D
y = StartFraction plus-or-minus StartRoot x EndRoot Over 3 EndFraction + two-thirds
23
Which function has the domain ?
A
y = StartRoot x + 11 EndRoot + 5
B
y = StartRoot x minus 11 EndRoot + 5
C
y = StartRoot x + 5 EndRoot minus 11
D
y = StartRoot x + 5 EndRoot + 11
24
What is the following product?
A
x squared (RootIndex 3 StartRoot 28 x squared EndRoot)
B
x Superscript 5 Baseline (RootIndex 3 StartRoot 28 x EndRoot)
C
4 x squared (RootIndex 3 StartRoot 3 x squared EndRoot)
D
4 x Superscript 5 Baseline (RootIndex 3 StartRoot 3 x EndRoot)
25
Which expression is equivalent to ?
A
8y10B
8y50C
32y10D
32y50Did you find these answers helpful?
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