Let p and q rational numbers (what does it means?), then, p and q coul be written as
then,
and we know that ad+bc is an integer, so, p +q is a rational number.
<span>5(x -5) = x(14 -4) =>5*x-5*5=x*10 => 5x-25=10x =>10x-5x=-25 =>5x=-25 => x= -25/5=-5</span>
Have a nice day!! ^^<span>
</span>
Step-by-step explanation:
(f+g)(x) means f(x) + g(x).
(f−g)(x) means f(x) − g(x).
So all you have to do is add them and subtract them.
1. (f+g)(x) = f(x) + g(x)
(f+g)(x) = (3x − 7) + (2x − 4)
(f+g)(x) = 5x − 11
2. (f−g)(x) = f(x) − g(x)
(f−g)(x) = (3x − 7) − (2x − 4)
(f−g)(x) = 3x − 7 − 2x + 4
(f−g)(x) = x − 3
3. (f+g)(x) = f(x) + g(x)
(f+g)(x) = (2x + 3) + (x² + ½ x − 7)
(f+g)(x) = x² + 2½ x − 4
4. (f−g)(x) = f(x) − g(x)
(f−g)(x) = (2x + 3) − (x² + ½ x − 7)
(f−g)(x) = 2x + 3 − x² − ½ x + 7
(f−g)(x) = -x² + 1½ x + 10
Answer:
y=-7x+48 slope would be -7
Step-by-step explanation:
Used a Regression Calculator
Answer:
y + 0.5 = 3(x - 2)
y + 0.5 = 3x - 6
y = 3x - 6.5
Step-by-step explanation:
