Answer:
A. 3 1/4
Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Answer:
Choice D
Step-by-step explanation:
If you check each one plugging in your info into this you can get
that 12² + 16² will equal 400 which is the same as 20².
Answer:
true
Step-by-step explanation:
There is no distribution (unless you count substitution) in the second set of terms.
Edit: I think I get what your question is now. You are supposed to distribute to every term inside the parenthesis (false)
Answer:
720º
Step-by-step explanation:
We can use vertical angles to figure this out. We can see that each of the unmarked angles in the triangles is a vertical angle to an empty space. A full circle has the measure of 360º. We need half of that which is 180º.
The sum of the angle measures of a triangle is 180º. We have five triangles so the total angle meaure is 900º.
However, we need to subtract the 180º to get 720º.