Answer:50%
Step-by-step explanation: or 1:2
Answer:
D. 
Step-by-step explanation:
Firstly, we know it's close to 6.75, so we can compute 6.75*6.75 and the product should be close to whatever's under the
. 6.75*6.75 = 45.5625, so we can already answer.
We could also figure out why other answers are bad.

U add 1 1/4 in the left one
Answer:
18.7
Step-by-step explanation:
The Law of Cosines is
, where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:

Simplify:



m≈18.665...
When rounded to the nearest tenth, m=18.7