Answer:
The answer is Yes
Step-by-step explanation:
1) 2/5 = 18/45
2x45 = 18x5
90 = 90 True
2) 6/9 = 54/81
6x81 = 54x9
486 = 486 True
A counter example is
f(x)=5x^5+2x^3+3x
g(x)=-5x^5-x^4+x^2-4
Then f(x)+g(x) = -x^4+2x^3+x^2+3x-4 which is a polynomial of degree 4.
So the answer is no. Counter-example is given above.
The distance from A to B will be negative when the line is trending downward from left to right.
Answer:
EF=3.6
Step-by-step explanation:
I'm going to use Pythagorean Theorem for side EF.
4.8^2+EF^2=6^2
23.04+EF^2=36
-23.04 -23.04
EF^2=12.96
sqrt sqrt
EF=3.6