Write the given statement as an equation.John kept track of the time it took him to drive to college from his home and the speed at which he drove. He found that the time t varies inversely as the speed r.
A. r = kt
B. t = 
C. t = kr
D. t = 
Answer: B
Mathematics
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Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log2
A. 
log210 + 
log2x
B. log2
+ log2
C. log210 + 
log2x
D. 
log210x
Mathematics
Find the area under the curve over the indicated interval.
Mathematics
Solve the quadratic equation using the quadratic formula.10 = 4x - x2
A. {-2 - i
, -2 + i
}
B. {2 - i
, 2 + i
}
C. {2 - i
, 2 + i
}
D. {-2 - i
, 2 + i
}
Mathematics
The histogram shows the scores of each participant in a game from a total of 100 participants. Use the histogram to answer the question. 
How many more participants scored 80-99 than 0-19?
A. 32 participants B. 16 participants C. 4 participants D. 10 participants
Mathematics