Midnight4675
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using approximations to 1 s.f. estimate the value of 0.482 x61.2 squared divided by the square root of 98.01

can anyone help please??

thank you.
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PetitePanda
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If you're estimating, you change the values by 1 significant figure and the equation will be easier to calculate by yourself
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Midnight4675
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yeah i tried that but the question is worth three marks and i got one from rounding the values by 1.s.f but i cant figure how to get the other two marks since ive showed the working. its mathswatch revision that i was supposed to complete during half term but it didnt work out, its so annoying!

thanks though

(Original post by PetitePanda)
If you're estimating, you change the values by 1 significant figure and the equation will be easier to calculate by yourself
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Muttley79
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(Original post by Midnight4675)
yeah i tried that but the question is worth three marks and i got one from rounding the values by 1.s.f but i cant figure how to get the other two marks since ive showed the working. its mathswatch revision that i was supposed to complete during half term but it didnt work out, its so annoying!

thanks though
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