20% of 250 people are french.
0.2 * 250 = 50 people. Hope this helps!
When you see the fraction 33/16, you realize that 33 divided by 16 is 2 remainder 1, so you add the 2 to the original 6, then put the remainder 1 on top of 16 ,which gives you 8 1/16
Answer:
Q 12 roots of the equation
![2x^{2} -6+1=0 \\= (x-\frac{\sqrt{10} }{2})(x+\frac{\sqrt{10} }{2})\\](https://tex.z-dn.net/?f=2x%5E%7B2%7D%20-6%2B1%3D0%20%5C%5C%3D%20%28x-%5Cfrac%7B%5Csqrt%7B10%7D%20%7D%7B2%7D%29%28x%2B%5Cfrac%7B%5Csqrt%7B10%7D%20%7D%7B2%7D%29%5C%5C)
∝ = ![\frac{\sqrt{10} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B10%7D%20%7D%7B2%7D)
β = ![-\frac{\sqrt{10} }{2}](https://tex.z-dn.net/?f=-%5Cfrac%7B%5Csqrt%7B10%7D%20%7D%7B2%7D)
no matter if u oppose the root
(i) 2(
)
+2
(
)+2(
(ii)(
- 3 (
)(
) + (
) = ![\frac{25}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B2%7D)
Q 13 roots of equation
![4x^{2} -3x-4=0\\\alpha = -0.693\\\beta = 1.443](https://tex.z-dn.net/?f=4x%5E%7B2%7D%20-3x-4%3D0%5C%5C%5Calpha%20%3D%20-0.693%5C%5C%5Cbeta%20%3D%201.443)
the roots of the second equation are
x1 = 1/3(-0.693) = -0.231
x2 = 1/3(1.443) = 0.481
the equation is
(x+0.231)(x-0.481)=0
![x^{2}-\frac{1}{4} x-\frac{1}{9}](https://tex.z-dn.net/?f=x%5E%7B2%7D-%5Cfrac%7B1%7D%7B4%7D%20x-%5Cfrac%7B1%7D%7B9%7D)
Step-by-step explanation:
![r = \sqrt{ \frac{А}{3} }](https://tex.z-dn.net/?f=r%20%3D%20%20%5Csqrt%7B%20%5Cfrac%7B%D0%90%7D%7B3%7D%20%7D%20)
![{r}^{2} = \frac{А}{3}](https://tex.z-dn.net/?f=%20%7Br%7D%5E%7B2%7D%20%20%3D%20%20%5Cfrac%7B%D0%90%7D%7B3%7D%20)
![А = 3{r}^{2}](https://tex.z-dn.net/?f=%D0%90%20%3D%20%203%7Br%7D%5E%7B2%7D%20)
HOPE IT HELPS YA