Answer:
10
Step-by-step explanation:
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<span>x^2 – 3x + 5x – 15
=x^2 + 2x - 15
= (x + 5)(x - 3)
hope it helps</span>
............................................................60 and 78
Answer:
Step-by-step explanation:
We can do this a couple of ways. We can graph it -- see below. Or we can do the math.
Math
y = x^2 - 2x - 15
This trinomial factors into
y = (x - 5)(x + 3)
from which
x - 5= 0
x = 5
and
x + 3 = 0
x = - 3
The y intercept is the value obtained when all the xs on the right = 0
y = 0^2 - 2*0 - 15
y = - 15
<em>Answer</em>
- x intercepts: (-3,0),(5,0)
- y intercept: (0,-15)
The graph is below.
Answer:
105 degrees
Step-by-step explanation:
since alternate interior angles are equal they have to be the same, so you just divide by two to get 105.