Use approximations to 1 significant figure to estimate the value of 0.101 x (51.2)^2 / (3.96)^1/2

Firstly simplify the equation down so all the elements are approximated to 1 significant figure, this gives us:0.1 x 502 / 41/2Then work out the values of the 502 and 41/2502= 250041/2=2Put these back into the equation and work out the answer:0.1x2500/2=250/2=125

LB
Answered by Louise B. Maths tutor

4018 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What is Standard form? And when can I use it?


Solve the following quadratic simultaneous equation: y = x + 4 and y = x^2 + 4x


Henry invest £8000 in youtube at a compound interest rate of 2% per year. He wants to earn more than £500 interest. Work out the least time, in whole years, that this would take?


X=4a+3b, If a is a two digit cube number and b is a two digit square number then what is the lowest possible value for X?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences