Algebra Percentage Error Equation Questions

Percentage error equation

MID TERM ASSIGNMENT
SS2 MATHEMATICS
1. a. Find the values of y for which 52y + 1 = 26 (54-1).
b. If a and B are the roots of the equation x2 – 4x + 3 = 0, find
the equation whose roots are:
i. (1+ a)(1+B) and (a – b). ii. (1/a)+ (1/B)
2. The 4th term of an Arithmetic sequence is 13 and the second
term is 3. Find the common difference and the fifth term
76.58
0.009523
3. Use the table to evaluate:
4. A classroom is 10m by 10m; a student measured a side as
9.5m and the other side as 10m and uses his measurement to
calculate the area of the classroom. Find the percentage error
in (a).the length of one of the sides (b) the area of the room
4. Instead of recording the number 1.23cm for the radius of a
tube, a student recorded 1.32cm, find the percentage error
correct to 1 d.p
5. The salary scale for a clerical officer starts at N55, 200 per
annum. A rise of N3, 600 is given at the end of each year, find
the total amount of money earned in 12 years.
The first three terms of a GP are k+1, 2k- 1,3k + 1. Find the
possible values of the common ratio.