Answer:
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Step-by-step explanation:
The correct form of the question is:

Required
Solve for Sum of the sequence
The above sequence represents sum of Geometric Sequence and will be solved using:

But first, we need to get the number of terms in the sequence using:

Where






So, we have:


Apply law of indices:


Apply law of indices:



Represent 1 as 

They have the same base:
So, we have

Solve for n

So, there are 1893 terms in the sequence given.
Solving further:

Where



So, we have:




Simplify the numerator






Open Bracket





Hence, the sum of the sequence is:
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<em> ----- approximated</em>
Answer:
Bidmas(brakets-indices-division-multiplication-addtion-subtraction) therfore
4*3-6+5=12-6+5=12-1=11
3. Divide by 5
4. Add 12
5. Multiplying by -8
6.subtracting by -6
Answer:
1. -370
2. 70
3. 10.75
4. 6700
5. 37.26
Step-by-step explanation:
1. Estimating the solution means round the numbers to the nearest ten, then subtract the rounded numbers.
2. Same thing as #1
3. Using long division, it should be quite easy. If you need more evaluation, comment and I'll answer.
4. To the nearest hundred, you write the closest exact hundred. example: 8334 would be rounded to 8300.
5. To the nearest hundredth, you write the closest exact hundredth. example: 65.734 would be rounded to 65.73
Hope this helped, good luck!