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2 years ago

9

I need help with this one. I will give someone brainliest.

1 answer:

natulia [17]2 years ago

3 0

Do u want numbers or are there options?

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Caroline resting heart is 52 beats per minute (bpm). When she starts running her heart rate increases 1.25% each second until it

horsena [70]

Answer:74.55 beat per minute

Step-by-step explanation:

Given

Heart beat is 52 beat per minute

i.e. $B=\frac{52}{60}$ beat per sec

If heart rate is increases 1.25 % each sec

suppose B is the heart beat at first second therefore heat beat at 2 nd second

$B_2=B+1.25 \% B$

$B_2=B(1+1.25 \% )$

For 3 rd sec

$B_3=B(1+1.25\%)+1.25\%B(1+1.25\%)$

$B_3=B(1+1.25\%)^2$

similarly for 3 sec

$B_{30}=B(1+1.25\%)^{29}$

$B_{30}=1.433B$

$B_{30}=1.242\ \text{beat per second }$

$B_{30}=74.55\ \text{beat per minute}$

4 0

3 years ago

An express train started at its home station. In 3 hours, it was 285 miles away. In 5 hours, it was 475 miles away. How fast was

Sedbober [7]

Answer:

95 mi/hr

Step-by-step explanation:

475/5 = 95

285/3 = 95

6 0

3 years ago

The 154 tenth-graders at Wilson High School were polled on whether they enjoyed their algebra or geometry course more. The resul

wolverine [178]

Answer: 80/154

47/87

No, P(male)does not equal P(male | geometry)

Step-by-step explanation:

8 0

2 years ago

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The following stem-and-leaf plot represents the scores earned by Mr. Roberts's class on their most recent science test.

NNADVOKAT [17]

Total 19 students in class

Hope it helps

4 0

3 years ago

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Plzzzzzzzzzzzzzzzzzzzz help don't leave it blank

Volgvan

Um i think you’re right

5 0

3 years ago

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