# Tutor profile: Caroline M.

## Questions

### Subject: Biology

What is the central dogma?

Central dogma describes the process by that DNA is turned into functional proteins. The first step is replication. This is when DNA replicates itself into an identical copy. The next step is transcription. This step involves DNA being transcribed into RNA. The last step is translation when RNA is used to code for amino acids which will fold into proteins.

### Subject: Calculus

How do I find the definite integral from -2 to 3 of x+3.

Our first step when solving a definite integral is going to be to find the integral of our expression in this case x+3. This will be (x^2)/2+3x. Next, we deal with the definite part -2 to 3. When we do this we are going to insert our 3 into the expression as x and then -2 into the expression as x. We will then subtract the second part from the third. This looks like this: (((3)^2)/2)+(3*3))-(((-2)^2/2)+(3*-2)) ((9/2)+9)-(2-6) (4.5+9)-(-4) 13.5+4=17.5

### Subject: Algebra

How do I solve: 12t+3=15t-7 solve for t.

So our goal in this problem is to solve for t. The first step that we are going to want to do is get all values that contain the "t" on one side of the equal sign and then the numbers that do not on the other side. This looks as follows: 3+7 = 15t-12t 10 = 3t Next we will want to get the t completely on its own. We will accomplish this by dividing both sides by 3. This looks as follows: 10/3 = t And 10/3 = t is your answer.