2x²-5x+8=0
use the quadratic formula, x=(5+√39i)/4 of x=(5-√39i)/4
looks like the second choice is correct.
Answer:
p = -40
Step-by-step explanation:
<u>Step 1: Distribute
</u>
8(61 + p) = 168
(8 * 61) + (8 * p) = 168
488 + 8p = 168
<u>Step 2: Subtract 488 from both sides
</u>
488 + 8p - 488 = 168 - 488
8p = -320
<u>Step 3: Divide both sides by 8
</u>
8p / 8 = -320 / 8
<em>p = -40
</em>
Answer: p = -40
You can find the slope using the points.
9-18 -9 9
--------- = ------- = -------
-14+10 -4 4
Next, you can find the equation of the line.
y-9=9/4(x+14)
y=9/4x+40.5
Plug in 0 for x.
y=9/4(0)+40.5
y=40.5
So, the y-intercept is (0,40.5)
Plug in 0 for y.
0=9/4x+40.5
-40.5=9/4
x=-18
So, the x intercept is (-18,0)
I hope this helps!
Answer:
i think -0.6
Step-by-step explanation:
