Answer:
21/5 or 4.2
Step-by-step explanation:
2x+11=32-3x
5x+11=32
5x=21
x=21/5
The intercept is
.
This is the y-intercept. To find the x-intercept,
.
(1.365, 0)
Answer:
No.
Step-by-step explanation:
Since we know the side lengths of the triangle, we can figure out whether or not this is a Pythagorean triple.
Pythagorean theorem: a^2 + b^2 = c^2
a and b are both smaller than c.
So,
8^2 = 64.
13^2 = 169.
15^2 = 225.
64 + 169 = 233.
233 is not equal to 225.
Therefore, this is not a right triangle.