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To determine the sum of the sequence, we can finfd the first five terms however it would be tedious. Instead, we can find the sum by the expression:
S(n) = a(1) ( 1 - r^n) / 1-r
S(5) = -2 (1 - (-3)^5) / 1-5
<span>S(9) = 122 <------------OPTION B</span></span>
Answer:
184 sq cm
Step-by-step explanation:
<h2><u>
Answer:</u></h2>
The answer is the <u>second option</u>, as 6:3 is less than 3:1
<u>Step-by-step explanation:</u>
- To work this out, divide Kevins' ratio by 3 to work out how much of the chemical solution he uses per gallon:
6:3 ÷ 3 = 2:1
- This shows that he uses less chemical solution per gallon than Jose, as <u>6:3 is less than 3:1.</u>
Sort of..
The mean is all the numbers added together then divided by the amount of numbers there were.
Ex~1,2,3,4,5
Add them all together: 15
Divide by 5 because there is five numbers 15/5=3
The median is the middle number once you put then in order from smallest to largest (or the other way around).
Ex~ 3,5,2,4,1
Rearrange: 1,2,3,4,5
Find the Middle: 3
The median is 3 because it is in the middle of them all once you put them in smallest to largest.
Hope this helped