Answer:
70
Step-by-step explanation:
= First term = 
= Common difference = 
= Number of terms = 20
Sum of arithmetic progression is given by
![S=\dfrac{n}{2}[2a_1+(n-1)d]\\\Rightarrow S=\dfrac{20}{2}\times (2\times \dfrac{1}{3}+(20-1)\dfrac{1}{3})\\\Rightarrow S=70](https://tex.z-dn.net/?f=S%3D%5Cdfrac%7Bn%7D%7B2%7D%5B2a_1%2B%28n-1%29d%5D%5C%5C%5CRightarrow%20S%3D%5Cdfrac%7B20%7D%7B2%7D%5Ctimes%20%282%5Ctimes%20%5Cdfrac%7B1%7D%7B3%7D%2B%2820-1%29%5Cdfrac%7B1%7D%7B3%7D%29%5C%5C%5CRightarrow%20S%3D70)
The sum of the first 20 terms of the arithmetic sequence is 70.
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
x=10,−1
Answer:
<h2>
<em>2</em><em>0</em><em>x</em><em>y</em><em>-</em><em>1</em><em>5</em><em>y</em><em>z</em></h2>
<em>Option </em><em>D </em><em>is </em><em>the </em><em>right </em><em>option.</em>
<em>Solution</em><em>,</em>
<em>
</em>
<em>hope </em><em> </em><em>this </em><em>helps.</em><em>.</em><em>.</em>
<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>
Answer:
step1 - distributive property
step2 - associative property
step3 - cumulative property
step4 - associative property
Step-by-step explanation: