Question: 3 Maximum mark 5 with GDC In an arithmetic series the first term is 7 and the sum of the first 20 terms is 620

3 Maximum mark 5 with GDC In an arithmetic series the

3 Maximum mark 5 with GDC In an arithmetic series the first term is 7 and the sum of the first 20 terms is 620 a Find the common difference b Find the value of the 78th term

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Find the answer and EXPLAIN how you got it. 3. The partial sum in the arithmetic series with first term 17 and a common difference 3 is 30705. How many terms are in the series? 4. An arithmetic...

Maximum mark 4 without GDC The second term of an arithmetic sequence is 7 The sum of the first four terms of the arithmetic sequence is 12 Find the first term w and the common difference d

Question3 Solve the following x. y and z 3x + 3y - z 19 a) 5x +4y-2z = 28 2x +2y-z12 b) Find the inverse of A3 3 -1 40 0 c) Find the sum of the arithmetic series with first term 1, common difference...

Please answer the following questions: Q10. An arithmetic series has first term a and common difference d. The sum of the first 25 terms of the series is 3500. (a) Show that a + 12d = 140. (3) (b)...

a) An arithmetic series has first term 4 and common difference 12. Find: i. t20 (2 marks) ii. The sum of the first 100 terms. (2 marks) b) Given the geometric progression 2, -6, 18, ........ .Find:...

Review: 2.1 through 2.8 Show work for credit. Find the equation that gives the with term of each sequence. (2.1) 5 5 1) 10,5,7 7. 2) - 5,-9,-13, -17, . WIN 4) Which of the following could represent...

c) The nth term of the series is \"n- Given that uk 1000, find the value of Me I: :3 :i ll ,_. 7. An arithmetic series has first term a and common difference d. The sum of the first ten terms of the...

Please could someone please help me with part C) of this question, i am struggling to find the value of K and i have had two different answers from two people: For reference a=1 d=10 7. An arithmetic...

Hi i am wondering if i could get some help with part c of this question? I have had one explanation but i am still a bit confused. 7. An arithmetic series has first term a and common difference d....

7. An arithmetic series has first term a and common difference d. The sum of the first ten terms of the series is 460. a) Show that 2a + 9d = 92. b) Given also that the 25th term of the sequence is...

Develop a chart to highlight the role of each of the four main elements of the retailing mix across the four stages of the retail life cycle.

The two-bar mechanism consists of a lever arm AB and smooth link CD, which has a fixed smooth collar at its end C and a roller at the other end D. Determine the force P needed to hold the lever in...

10.4.2 Obtain a random sample of size 4 from a Pareto distribution with a density j ( z ) = (1 + E ) - ~fo r z > 0 and 0 otherwise. Use the following random sample from U[O, 11:...

A hula hoop and solid disc of equal radii are rolled, from rest and without slipping, down an incline plane. Which one will reach the bottom of the inclined plane first? Explain.

Advanced One common approach to organisational control theory is to look at the model of a cybernetic system. This is often illustrated by a diagram of a thermostat mechanism. You are required: (a)...

Advanced Textbooks on accounting often describe manage ment information and financial control systems as if they work in exactly the same way as machine control systems. Many accountants appear to...

Advanced What are the behavioural aspects which should be borne in mind by those who are designing and operating standard costing and budgetary control systems? (20 marks) CIMA Cost Accounting 2