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Orlov [11]
3 years ago
7

The graph shows the relationship between James’s resting heart rate and the number of hours he exercises per day. For every hour

of exercise, James’s resting heart rate decreases by about (1,5,15,20) beats per minute. His resting heart rate is about (50.5, 70, 77.5,82.5) beats per minute when he exercises 4 1/2 hours a day.

Mathematics
2 answers:
Umnica [9.8K]3 years ago
7 0

Answer:

decreases by about 5 beats per minute

His resting heart beat is about 80 beats per minute

Step-by-step explanation:

sweet-ann [11.9K]3 years ago
6 0

Answer:

dude im in 8th grade and im getting college math no wonder i have a D-

Step-by-step explanation:

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an open box is to be made from a two-foot by three-foot rectangular piece of metal by cutting equal squares from the corners and
tensa zangetsu [6.8K]

The volume for the largest box will be 1.056 foot³. This can find out by application of differentiation.

What is AOD?

AOD is nothing but application of differentiation. It implies scopes where we can use differentiation to make our calculations easy.

Here, given

Length and breadth = 2,3 foot

Let us consider length of side of square = x

So, after cutting squares left sides of rectangular sheet = 2-2x , 3-2x

So, volume = (2-2x)*(3-2x)*x

                v = 4x³ - 10x² + 6x

To find largest volume , \frac{dv}{dx} = 0

                 \frac{dv}{dx} = 12x² - 20x + 6

                12x² - 20x + 6 = 0

                x = 0.4 , 1.3

But, for 1.3 volume will be negative i.e. not possible.

So, volume = 2.2*1.2*0.4

                   = 1.056 foot³

Learn more about differentiation from given link:

brainly.com/question/954654

#SPJ4        

5 0
1 year ago
You earn $9.20 per hour at your summer job. Write and solve an inequality that represents the number of hours you need to work i
AleksandrR [38]
H is hours
9.20H ≧ 299
H ≧ 299/9.20
H ≧ 32.5
Hours to work at summer job to pay $299 is 32 hours and 30 minutes.
3 0
3 years ago
Answer for 10 points
12345 [234]

Answer:

$4250

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
5x + 3 = x + 11<br> Please help
taurus [48]

Answer:

2

Step-by-step explanation:

5x + 3 = x + 11

5x - x + 3 = x - x + 11

4x + 3 = 11

4x + 3 - 3 = 11 - 3

4x = 8

4x / 4 = 8/ 4

x = 2

Hope this helps ^-^

4 0
3 years ago
Read 2 more answers
I have to show my work using the LCM strategy or fraction models.
Artyom0805 [142]

Answer:

1/2 or 0.5 in decimal

Step-by-step explanation:

you would want to make the 3/10 eqale to 20/100 like it has to have the same denominatior which is 10x10 and 3x10. because 10x10 eqal to 100, and what you do to the bottom you have to do the same on the top. and then you add which becomes 30/100+20/100=50/100 and 50/100 =1/2 if you simplfiy.  

3 0
3 years ago
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