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I struggle with the following type of question: "The first four terms of an arithmetic sequence are 5, 9, 13, 17. Write down an expression, in terms of n, for the nth term in the sequence." How should I approach this?

The way I would suggest approaching a question like this is to imagine n=1, n=2, n=3 and n=4 above the terms given, or even to literally write that above each of the 4 given numbers. n ---------- 1 2 3 4r...

WS
Answered by William S. • Maths tutor
13790 Views

Explain why and when government spending leads to inflation

To answer this question we must first understand what is meant by inflation. Inflation refers to the sustained increase in the price level in the economy. To illustrate the role of government spending in ...

SS
3662 Views

Solve: 1/3 x = 1/2 x + (− 4)

(1/3)x=(1/2)x+(-4) (1/3)x=(1/2)x-4(1/3)x - (1/2x) = -4 (1/3)(x/1) - (1/2x)(x/1) = -4. => x/3 - x/2 = -4Find common denominator: here 62x/6 - 3x/6 = -4-x/6 = -4 -x = -24x = 24 Check:

IB
Answered by Iulia B. • Maths tutor
2749 Views

Explain how blood is pumped through the body.

Blood from the veins is collected in the right and left atria of the heart. The atria can contract because of the impulses from the sinoatrial node (SA) (the heart’s natural pacemaker). When this happens,...

IB
Answered by Iulia B. • Biology tutor
2211 Views

Study Figure 2 showing the Demographic Transition Model. Explain why death rates started to fall at the beginning of Stage 2. You should refer to two reasons in your answer.

During stage 2 of the DTM, death rates started to fall due to advancements in healthcare. Vaccinations had been discovered and so programmes were introduced to inoculate babies against diseases such as sm...

JE
Answered by Joshua E. • Geography tutor
6024 Views

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