MALLORY?!
sorry i would answer but i'm having troubles myself!!!!!
The hundredths place is where the 5 is.
Look to the right of the hundredths place and determine if the number is 5 or more or if the number is 4 or less.
In this problem, the number to the right of 5 is 1, and 1 is less than 4.
This means you can keep the 5 the same and every number after the 5 becomes imaginary zeroes.
3.95174 becomes 3.95 (rounded to nearest hundredth).
angle 2 is also 65º because they are corresponding angles. Using the vertical angles theorem, you can also say that angles 3 and 7 are 65º. so the answer to your question would be angle 3
Frank has at least a month of jogging left. Seriously, he couldn't make it more than a quarter of a mile? Frank is clearly out of shape. His best bet at this point is to put down the Big Mac and hit the gym.
Also, here's the real answer:
2/3-1/4
8/12-3/12
5/12
Frank has 5/12 mile left
This is the good part of Trigonometry, actually measuring triangles. It's much better than all the identities around sine and cosine and the rest, which actually have more to do with circles than triangles.
This part of trig has a short menu:
Law of Cosines. Three ways to write it, one is 
Law of Sines: 
Triangle angles: 
and two special cases of the Law of Cosines, the Pythagorean Theorem
and the Collinear Points Theorem:
Here we choose Triangle Angles followed by Law of Sines:
A = 180 - 105 -15 = 60 degrees
Answer: 1.8 cm
When I was a student we'd be expected to get 
exactly and get
But that was before online homework.
