exam Maths Puzzle Numerical Ability

please help

FInd the product :

-5a^2(a^2-6a+7)

Read Solution (Total 0)

exam Other Question

help on this question
For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion.
x
8.9
9.7
10.3
8.5
10.4
9.3
9.8
7.1
10.6
11.1 The weight of 1m^3 of air is approximately 1.3 x 10^3 g. Suppose that the volume of air inside of a building is 3 x 10^6 m^3. How much does the air inside the building weigh?