Answer:
x = +5
Step-by-step explanation:
The triangles ADB and BDC are similar. Thus it is possible to write an equation of ratios and solve it for x:
x 10
----- = -------
10 4x
Cross-multipying, we get:
4x^2 = 100, which yields x = +5
The coordinates of the point of intersection are read from the graph as ...
(3, 5).
Replace each of the x values given to see if they give 0.
0=(2/3)³+(2/3)²-1
0=(8/27)+(4/9)-1
0≠-0.259
0=(1)³+(1)²-1
0≠1
Therefore, you can see that the solution would have to be between 2/3 and 1.
Hope I helped :)
5+3 = 8
8 is 100%
3/8 = 37.5%
I feel like I might be wrong haha sorry if I am
Step 1. Multiply both sides by cx+d
<span>ax+d = e (cx+d) </span>
<span>Step 2. Distribute </span>
<span>ax+b = ecx + ed </span>
<span>Step 3. Subtract b from both sides </span>
<span>ax = ecx + ed - b </span>
<span>Step 4. Subtract ecx from both sides </span>
<span>ax - ecx = ed - b </span>
<span>Step 5. Factor our x from the right side </span>
<span>x(a-ec) = ed - b </span>
<span>Step 6. Divide both sides by a-ec </span>
<span>x = (ed-b) / (a-ec)</span>
