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Mashutka [201]
3 years ago
14

Please answer this correctly

Mathematics
1 answer:
brilliants [131]3 years ago
3 0

5 x 3 = 15 + 1 = 16 feet

16 x 8 = 128 feet

128 / 3 = 42 yards 2 feet

Hope this helps!! :)

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Find the area of a circle with the radius 48mm. Use 3.14 as pie. Round to the nearest hundredth if necessary.
inn [45]

48 \times 3.14

150.72mm^2

7 0
2 years ago
Does anybody know how to do time with exponential decay
My name is Ann [436]
<span>From the message you sent me:

when you breathe normally, about 12 % of the air of your lungs is replaced with each breath. how much of the original 500 ml remains after 50 breaths

If you think of number of breaths that you take as a time measurement, you can model the amount of air from the first breath you take left in your lungs with the recursive function

b_n=0.12\times b_{n-1}

Why does this work? Initially, you start with 500 mL of air that you breathe in, so b_1=500\text{ mL}. After the second breath, you have 12% of the original air left in your lungs, or b_2=0.12\timesb_1=0.12\times500=60\text{ mL}. After the third breath, you have b_3=0.12\timesb_2=0.12\times60=7.2\text{ mL}, and so on.

You can find the amount of original air left in your lungs after n breaths by solving for b_n explicitly. This isn't too hard:

b_n=0.12b_{n-1}=0.12(0.12b_{n-2})=0.12^2b_{n-2}=0.12(0.12b_{n-3})=0.12^3b_{n-3}=\cdots

and so on. The pattern is such that you arrive at

b_n=0.12^{n-1}b_1

and so the amount of air remaining after 50 breaths is

b_{50}=0.12^{50-1}b_1=0.12^{49}\times500\approx3.7918\times10^{-43}

which is a very small number close to zero.</span>
5 0
3 years ago
Name Date 1. Create a scale drawing of the picture below using a scale factor of 60%. Write three equations that show how you de
adelina 88 [10]

Answer:

60 9 is answerrr..........

4 0
3 years ago
-91=13n How would you work out this math problem
Igoryamba

Answer:

n=-7

Step-by-step explanation:

For this you can do the inverse of division which is division. So Divide -91 and 13. Which is -7.

7 0
3 years ago
Read 2 more answers
Please help me , I need help!!!
GaryK [48]

Answer:

An odd number times an even number is always even

e.g 2 × 3 = 6

4 × 5 = 20

adding 1 to an even number makes it odd

6 + 1 = 7

20 + 1 = 21

hope this helps...

6 0
2 years ago
Read 2 more answers
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