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mixer [17]
3 years ago
6

Ben collected data from a group of 12 people. He measured each person’s resting heart rate and recorded the average number of ho

urs each person exercised per week. He created a scatterplot to show the data he collected.
Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of 8 hours each week?

A. 55 beats per minute

B. 60 beats per minute

C. 50 beats per minute

D. 30 beats per minute

Mathematics
2 answers:
Alex777 [14]3 years ago
7 0

Answer:

50

Step-by-step explanation:

andriy [413]3 years ago
7 0

Answer:

50

Step-by-step explanation:

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elena-14-01-66 [18.8K]

Answer:

x=30

Step-by-step explanation:

For each right-angled triangle:

\cos\theta=\frac{cathetus \ adjacent \ \theta}{hypotenuse}

Because \cos \theta=0.4, \ \ cathetus\ adjacent \ \theta \ = \ 12, \ \ \ hypotenuse=x

we have an equation

0.4=\frac{12}x

multiplying both sides by x, we get 0.4x=12

dividing both sides by 0.4 and x=\frac{12}{0.4}

using calculator, we divide 12 by 0.4

and finally x=30


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Answer:

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3 years ago
Which statement about the histogram is true
Olin [163]
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A medical office administers a survey, regarding patient satisfaction. Based
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Answer:     C. Use a larger sample size   and   D. Larger confidence level

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Answer:

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Step-by-step explanation:

first you would subtract 60 by 20 to get 40 then your time would be at 9:00 so in order to get to 10:00 you would have 60 minutes which you would add the 40 to to get 100 minutes then add 5 to bring your time to 10:05 and your total number of minutes to 105

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