Answer:
i think option d tan theta =0
(8x^2+2x+8)+(3x^3+7x+4)=
8x^2+2x+8+3x^3+7x+4
3x^3+8x^2+(2+7)x+12=
3x^3+8x^2+9x+12
Answer: Option A. 3x^3+8x^2+9x+12
If you havent learnt Sin, Cos yet, let me know, so we can try the other solutions.
<em>Hey There!!</em>
<em>The answer is below!!</em>
Step-by-step explanation:
We move all terms to the left:

We add all the numbers together, and all the variables

We get rid of parentheses

After that, We add all the numbers together, and all the variables

Then, We move all terms containing n to the left, all other terms to the right



<em>I don't know this is </em>
% right....

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To find the miles for 3rd day, we take away the miles she biked for the first two day from the total.




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Answer: She traveled 13 23/56 miles on the third day.-----------------------------------------------------------------------------------