k=sqrt ((3d)/(e)) d=4.6 correct to 1 decimal place. e=0.08 correct to 1 significant figure. Work out the upper bound for the value of k. Give your answer correct to 3 significant figures. You must show all your working. Showyourworking

Question

Answer 1

To perform this calculation once correctly, the result is

. Therefore, rounding to 3 significant figures, the upper bound for the value of

is 102.

Answer 2

## Step1: Remembering that when working out bounds, when referenced variable is in denominator as it exists in formula

, it gets the lower bound while the numerator gets an upper bound.## Step2: The value of

correct to 1 decimal place implies the range is found by adding/subtracting a half of 0.1 as shown:

## Step3:Similarly, the value of

correct to 1 significant figure implies a range of a half from 0.005 to 0.015 as seen:

## Step4:The equation

impliesWe have

, and

. As per step 1,Upper boundary of

and Lower boundary of

## Step5:Plug the values into the equation

: ###

## Step6:Solve for

to get the solution.

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