Question

5. Two quantities A and B are such that the square of B is proportional to A. If the value of

A is 64 for a value of 8 for B, find the value of A if the value of B is 0.4.

Answer 1

A = 0.16

Explanation:

Step 1) it is known that B^2 = A - therefore 8^2 = 64.

Step 2) since B in the question = 0.4 (see it as 4/10) - logically - you square the numerator and denominator to get (4^2/10^2) - then solve the exponents to get (16/100) or 0.16

Answer 2

a

Explanation: