a) 2/8 = 1/4
b) There are 3 females who can speak French and 2 males who can speak French, so the probability is 3/5
Answer:
It's 2
Step-by-step explanation:
I don't know what to write
Answer:
c. Substitute
Step-by-step explanation:
A graph of the function on the left shows the parabola touches the x-axis at x = -8/3. That is, the vertex is on the x-axis. It crosses the y-axis at y = 64.
<h3>Show a value is a root</h3>
A given solution to an equation can be verified by substituting that value into the equation an showing the result is a <em>true statement</em>. Here, the value x=-8/3 is a root of the given equation because that value makes the equation true.
![9\left(-\dfrac{8}{3}\right)^2+48\left(-\dfrac{8}{3}\right)+64=0\\\\9\left(\dfrac{64}{9}\right)-\left(\dfrac{48\cdot8}{3}\right)+64=0\\\\64-\dfrac{3\cdot2\cdot8\cdot8}{3}+64=0\\\\64-2\cdot64+64=0\\\\0=0\qquad\text{True}](https://tex.z-dn.net/?f=9%5Cleft%28-%5Cdfrac%7B8%7D%7B3%7D%5Cright%29%5E2%2B48%5Cleft%28-%5Cdfrac%7B8%7D%7B3%7D%5Cright%29%2B64%3D0%5C%5C%5C%5C9%5Cleft%28%5Cdfrac%7B64%7D%7B9%7D%5Cright%29-%5Cleft%28%5Cdfrac%7B48%5Ccdot8%7D%7B3%7D%5Cright%29%2B64%3D0%5C%5C%5C%5C64-%5Cdfrac%7B3%5Ccdot2%5Ccdot8%5Ccdot8%7D%7B3%7D%2B64%3D0%5C%5C%5C%5C64-2%5Ccdot64%2B64%3D0%5C%5C%5C%5C0%3D0%5Cqquad%5Ctext%7BTrue%7D)
To check if x = 9 is the solution, we need to replace every x with 9 and simplify
(3+x)/4 = 3
(3+9)/4 = 3
12/4 = 3
3 = 3
We get the same thing on both sides, so the last equation is a true equation. This means that the first equation is a true equation when x = 9. Therefore, the solution x = 9 is confirmed.
1X0.28
dude thats easy man