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jeyben [28]
3 years ago
7

-3/4(8q-12r)-3(3q-2r)=

Mathematics
1 answer:
melamori03 [73]3 years ago
3 0

Answer:

Step-by-step explanation:

Correct option is D)

Given (3q+7p

2

−2r

3

+4)−(4p

2

−2q+7r

3

−3)

According to the rules of subtraction of algebraic equation, we have negative sign will

Becomes positive and so we have to keep the big numerical sign.

Now arrange the variables in rows we get

(3q+7p

2

−2r

3

+4)−(4p

2

−2q+7r

3

−3)=(3p

2

+5q−9r

3

+7)

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<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}

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