Algebra Answers

1. If the sum of the first 20 terms of an A.P is 200, and the first term is 40, find the common difference.

2. Find the sum to infinity of a G.P whose first term is 2 and common ratio is 19/20

3. Find the sum of the first 10 terms of a G.P whose first term is 5 and the common ratio is 2

(x+a)^8=x^8(1+a/x)^8
Pls describe.....

Find the 50th term of this arithmetic sequence:

2, 5, 8, 11, . . .

A 3cm by 3cm square piece of cardboard was cut from a bigger square cardboard. The area of the remaining cardboard was 40cm^2. If s represents the length of the bigger cardboard, which of the following expressions give the area of the remaining piece?
a. s-9
b. s^2+9
c. s^2-9
d. s^2+40

-7/20*5/28/2/16

What are the integers of -5?

You require a mathematics tutor to help you with an upcoming examination. Tutor AAA charges R600 for two hours while tutor BBB charges R500 for 105 minutes. Which tutor offers the more economical rate?

A father distributes R1500 to his three children, Jane, Karen and Eddie, in the ratio J:K:E respectively.
If Jane gets twice as much as Karen, who in turn gets three times as much as E . How much does each child receive

Victor is having 0.5 m3 of sand delivered to his home to put in his children’s sandbox. The mass (weight) of the sand is 0.75 t.What is the mass (weight) of the sand in kilograms?

The expression x³-4x²+cx+d such that x + 1 is its factor, and its value is 1
when x is -2 . Find c and� d