The answer is c you have to multiply 2.25 by 3
Only in d. are the number related by multiplication (Multiplied by 3 each time to get the next number in the sequence).
3 x 3 =9
9 x 3 =27
27 x 3 = 81 etc.
Answer:
20
Step-by-step explanation:
10+10 = 20
3.3
if you mean 3.33333333333 (repeating)
just do 3.33 (you round down, or if you're writing it out, you can put a line over the three
_
3.33
Coefficient of
= 24
<em><u>Solution:</u></em>
Given that:
![(2x - y)^4](https://tex.z-dn.net/?f=%282x%20-%20y%29%5E4)
We have to find the coefficient of
term
<em><u>Use the following algebraic formula</u></em>
![(a-b)^4 = a^4 - 4a^3b+6a^2b^2-4ab^3+b^4](https://tex.z-dn.net/?f=%28a-b%29%5E4%20%3D%20a%5E4%20-%204a%5E3b%2B6a%5E2b%5E2-4ab%5E3%2Bb%5E4)
From given,
![(2x - y)^4](https://tex.z-dn.net/?f=%282x%20-%20y%29%5E4)
Where,
a = 2x
b = y
Therefore, by using formula, we get,
![(2x - y)^4 = (2x)^4 - 4(2x)^3(y) + 6(2x)^2(y)^2 - 4(2x)(y)^3 + y^4\\\\Simplify\\\\(2x - y)^4 = 16x^4 - 32x^3y + 24x^2y^2-8xy^3 + y^4](https://tex.z-dn.net/?f=%282x%20-%20y%29%5E4%20%3D%20%282x%29%5E4%20-%204%282x%29%5E3%28y%29%20%2B%206%282x%29%5E2%28y%29%5E2%20-%204%282x%29%28y%29%5E3%20%2B%20y%5E4%5C%5C%5C%5CSimplify%5C%5C%5C%5C%282x%20-%20y%29%5E4%20%3D%2016x%5E4%20-%2032x%5E3y%20%2B%2024x%5E2y%5E2-8xy%5E3%20%2B%20y%5E4)
Find the coefficient of ![x^2y^2](https://tex.z-dn.net/?f=x%5E2y%5E2)
From above simplified expression,
coefficient of
= 24