83-63=20
So your answer is 20
Yes because only 1/3 of the days are rainy days, which is about 4.67 days of rain.
Answer:
I assume you meant 4x^2
So the answer in simplified form is -4x^2-11x+3
(2x-1)×4=8x-4
I hope it helps ;)
The tangent meets the radius at a right angle.
We use (the converse of) the Pythagorean Theorem to check:

Not a right triangle
Answer: FALSE