Answer:
8.06
Step-by-step explanation:
Use the Pythagorean theorem:

The hypotenuse is always the slanted side, or c (x in this picture), but the other numbers can be interchanged. Doesn't matter.
Plug the numbers 4 and 7 into the formula.

Now evaluate them to get 
16+49=65
To get c, take the square root of 65

Answer:
9
Step-by-step explanation:
You take 3x and subtract it from both sides.
3x-3x+27=6x-3x
You now should have 27=3x. Divide 3 from 27 to get 9 as your total.
Step-by-step explanation:
the common ratio of the geometric sequence 4, -12,36,...
= -12/4 = -3
Answer:
B.
Step-by-step explanation:
1/4 Is the same as saying 25%.