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2 years ago

Please help, I will give five stars.

Mathematics

2 answers:

Juli2301 [7.4K]2 years ago

7 0

The answer choice is C

aleksandr82 [10.1K]2 years ago

4 0

Answer:

Step-by-step explanation:

So I don’t know if you don’t know how to do it but imagine right to explain it ... You good have to add oh yeah P2 together and all numbers together and all the p together see this is why I did use different colors. Have an amazing day :)

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3 6/12 + 3 9/12. ..

Ludmilka [50]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Write an equation that can be used to answer each question

Ira Lisetskai [31]

1. (70 - 44) / 2

2. (45.00 - 25.50) / 6

3. (75 - 39) / 3

4. (90 - 30 +10) / 3

5. (100- 30+10) / 10

6. (50 - 5) / 10

PS: / means divide or division. also remember PEMDAS

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3 years ago

Assume that trees are subjected to different levels of carbon dioxide atmosphere with 7% of the trees in a minimal growth condit

taurus [48]

Answer: The mean and standard deviation are 567.2 and 89.88 resp.

Step-by-step explanation:

Since we have given that

For 370 parts per million = 7% = 0.07

For 440 parts per million = 10% = 0.10

For 550 parts per million = 49% = 0.49

For 670 parts per million = 34% = 0.34

So, Mean of the carbon dioxide atmosphere for these trees would be

$E[x]=370\times 0.07+440\times 0.1+550\times 0.49+670\times 0.34=567.2$

And

$E[x^2]=370^2\times 0.07+440^2\times 0.1+550^2\times 0.49+670^2\times 0.34=329794$

So, Variance would be

$Var\ x=E[x^2]-E[x]^2=329794-567.2^2=8078.16$

So, the standard deviation would be

$\sigma=\sqrt{8078.16}=89.88$

Hence, the mean and standard deviation are 567.2 and 89.88 resp.

3 0

3 years ago

Simplify the following expression.<br> 4/72

ryzh [129]

Answer:

1/18

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 4/4=1 and 72/4=18.

Hence, 4/72=1/18

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

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3 years ago

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What is the right answer show your work

Snowcat [4.5K]

Quadratic is the answer.......................

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3 years ago