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Explanation:</h2><h2>
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In this case we have the following expression:
![6x^2+10](https://tex.z-dn.net/?f=6x%5E2%2B10)
We know that Karen was trying to factor out this and she found that the greatest common factor of these terms was 2, in other words we can write this expression as:
![2(3x^2+5)](https://tex.z-dn.net/?f=2%283x%5E2%2B5%29)
An area model for this expression could be the area of a rectangle that has the following dimensions:
![W=2 \\ \\ L=3x^2+5 \\ \\ \\ Where: \\ \\ W:width \\ \\ L:length](https://tex.z-dn.net/?f=W%3D2%20%5C%5C%20%5C%5C%20L%3D3x%5E2%2B5%20%5C%5C%20%5C%5C%20%5C%5C%20Where%3A%20%5C%5C%20%5C%5C%20W%3Awidth%20%5C%5C%20%5C%5C%20L%3Alength)
So the area model can be written as:
![A=W\times L \\ \\ \boxed{A=2(3x^2+5)}](https://tex.z-dn.net/?f=A%3DW%5Ctimes%20L%20%5C%5C%20%5C%5C%20%5Cboxed%7BA%3D2%283x%5E2%2B5%29%7D)
For an arithmetic sequence, the nth term is the first term plus (n-1)×the differece
the first term is 28, the difference between each adjacent number is 8
so -36=(28)+8(n-1)
8(n-1)=64
n-1=8
n=9
the 9th term is -36
Answer:
![\dfrac{9}{64}](https://tex.z-dn.net/?f=%5Cdfrac%7B9%7D%7B64%7D)
Step-by-step explanation:
Sampling with replacement means that we choose a marble, note its colour, put it back and shake the box, then choose a marble again.
There are
marbles in total. The probability that the first chosen marble is blue is
then Maya replaces this marble and the probability of choosing the second blue marble is the same. Using the product rule, the probability of drawing 2 blue marbles in a row is
![\dfrac{3}{8}\cdot \dfrac{3}{8}=\dfrac{9}{64}.](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B8%7D%5Ccdot%20%5Cdfrac%7B3%7D%7B8%7D%3D%5Cdfrac%7B9%7D%7B64%7D.)
3:7 =
3/7
3/7 = x/35
7x = 105
x = 15
answer : clara borrowed 15 books