Question

.. Solve the following questions. Each question carries 2 marks.
(8 marks)
a) Express 351 as a product of powers of its prime factors.
b) The mean of 10 observations was calculated as (40. On rechecking, it was
detected that the number 45 was incorrectly copied as 15. Find the correct mean.
c) Simplify and express the following in exponential form:
54 x x10,5
54 x x7y4
а
aman
a(man)
=
40x 10-400
lo​

Answer 1

Answer:

a)3×3×3×17

3³×17

.....