Write the following as a rate in lowest terms.188 miles in 47 minutes
A. 
B. 
C. 
D. 
Answer: A
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Answer the question.A researcher looks at the percentage of people having high blood pressure amongst those who exercise regularly and amongst those who do not exercise regularly. She selects 300 people under 40, of whom 100 exercise regularly and 200 do not. Among those who exercise regularly the rate of high blood pressure is 10% and among those who do not exercise regularly it is 15%.She then selects 300 people over 40, of whom 200 exercise regularly and 100 do not. Among those who exercise regularly the rate of high blood pressure is 30% and among those who do not exercise regularly it is 35%.However when she combines both age groups she finds that among those who exercise regularly the rate of high blood pressure is 23.3% and among those who do not exercise regularly it is
21.7%. Explain how the apparent inconsistency in these results came about. A. The group that exercises regularly contains a greater proportion of older people than the group that does not exercise regularly. So when the age groups are combined, the "regular exercise" group has a higher rate of high blood pressure. B. The people in the "regular exercise" group probably started exercising because they have high blood pressure. C. Mistakes must have been made in measuring blood pressures. D. Those that do not exercise regularly must be receiving some other treatment to lower their blood pressure.
Solve.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate 
of power when 
of current is flowing through the resistor whose resistance is 
find the power that a resistor needs to dissipate when 
of
current are flowing through a resistor whose resistance is 
A. 405 watts
B. 90 watts
C. 45 watts
D. 225 watts
Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Identify the set as finite or infinite.{3, 5, 7, . . .}
A. infinite B. finite