Nadia
6/8 is 3/4 and both is 75% of a pizza but, the eighths of a pizza is a smaller slice of pizza.
4/4 is four slices of pizza
8/8 is eight slices of pizza They are different amounts.
the answer is the first one A
You haven't provided the required roots, but I can tell you how to do this kind of exercises in general.
If the
coefficient is 1, i.e. the equation is written like
, then you can say the following about the coefficients b and c:
is the opposite of the sum of the roots
is the multiplication of the roots.
So, for example, if we want an equation whose roots are 4 and -2, we have:
So, the equation is ![x^2-2x-8=0](https://tex.z-dn.net/?f=%20x%5E2-2x-8%3D0%20)
If your roots are rational, you can work like this: suppose you want an equation with roots 3/4 and 1/2. You have:
And so the equation is
![x^2 - \dfrac{5}{4} + \dfrac{3}{8} = 0](https://tex.z-dn.net/?f=%20x%5E2%20-%20%5Cdfrac%7B5%7D%7B4%7D%20%2B%20%5Cdfrac%7B3%7D%7B8%7D%20%3D%200%20)
In order to have integer coefficients, you can multiply both sides of the equation by 8:
![8x^2 - 10 + 3 = 0](https://tex.z-dn.net/?f=%208x%5E2%20-%2010%20%2B%203%20%3D%200%20)
1:2=3:6
the missing number is 6
:)
Next 6 terms =81 ,243,729,2187,6561,19683