Answer:
Discriminant is greater than zero, so the roots are unequal and real.
Step-by-step explanation:
We use discriminant to find the nature of the roots
discriminant formula is, b^2 - 4ac
13^2 (-4) × 4 × 6 = 169 - 96 ➡ 73 >0 if discriminant greater than 0 that means the roots are real and unequal.
48/3
that is 16 because
16 + 16 is 32 + 16 is 48
Hope this helps :)
Answer:
76
Step-by-step explanation:
j and k are the same size and every triangle equals 180
64+64=128
180-128=52
L=52
l and m are the same
52+52=104
180-104= 76
n=76
A is not correct, because some slopes can be negative. For example, the equation
![x=-2y](https://tex.z-dn.net/?f=x%3D-2y)
has a slope of
![-2](https://tex.z-dn.net/?f=-2)
.
B is also not correct. For instance,
![y= -2x](https://tex.z-dn.net/?f=y%3D%20-2x)
and
![y=-2x + 7](https://tex.z-dn.net/?f=y%3D-2x%20%2B%207)
have the same slope. But they are different lines.
C is not correct either. Not all steep lines have a negative slope. A line with a slope of 10 is very steep, but not negative.
D is correct. It is a rule that t<span>he slope of a line that moves up from left to right is positive.
E is also correct. If you have the equation </span>
![x=0](https://tex.z-dn.net/?f=x%3D0)
, the slope will be undefined.<span>
</span>