Evaluate.-105
A. -10,000
B. 10,000
C. -100,000
D. 100,000
Answer: C
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Write the number in decimal notation. ? Interior temperature of the sun: 1.5 × 102 degrees Celsius ?
A. 1,500,000°C B. 15,000,000°C C. 150,000°C D. 15,000°C E. 1,500°C
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.
The following triple line graph reflects the crime statistics gathered for a certain city. Use the graph to answer the following question(s).
Which year was the number of burglaries the highest and which year was it the lowest?
A. 2003 and 2005 B. 2005 and 2004 C. 2003 and 2004 D. 2004 and 2005
Find a Cartesian equation for the parametric equations.x = 4 cosh t , y = 5 sinh t
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1