**Answer:**

The confidence interval for the true mean calorie content is

**Step-by-step explanation:**

In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:

We need to determine **t** for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.

Then we can calculate the limits of the CI:

**Answer:**

3rd one. The general form of a circle is set equal to the radius squared. So right side is 4 then plug in values until true.

Coefficient is any number

No, you need to study. Listen to your teach and start sucking my dix you woore