Assume that all numbers are approximate. (A) estimate the result and (b) perform the indicated operations on a calculator and compare with the estimate. 3.64(17.06)?

Question

Assume that all numbers are approximate. (A) estimate the result and (b) perform the indicated operations on a calculator and compare with the estimate.  3.64(17.06)?

anonymous · Answer

i have 4*20 =80 as the estimate and for the final i have 62.0984 rounded to 62.1 is this correct?

anonymous · Answer

@eyust707

eyust707 · Answer

I wouldnt round the second number... sounds like they want an exact answer

eyust707 · Answer

Also since Ive done these types on things a lot I would probably make my estimate 4 * 15 not 4 * 20

anonymous · Answer

oh okay

anonymous · Answer

this technical math so i'm not sure how to go about it

eyust707 · Answer

This rule isnt set in stone but since you are rounding 3.64 up it may helpo to round 17.06 down

eyust707 · Answer

if you round both up you can be sure that your estimate is too high..

eyust707 · Answer

which in some applications is good!

anonymous · Answer

i see

eyust707 · Answer

I once ordered gravel for landscaping... I used this technique too order just a little extra so that I would be certain to have enough

eyust707 · Answer

but gravel is cheap.. if it was clear redwood i'd probably be a bit more precise

eyust707 · Answer

=)

anonymous · Answer

thanks

anonymous · Answer

i have one more problem for you to look at for me

eyust707 · Answer

ask away

anonymous · Answer

determine which of the pair of approximate numbers is precise and more  accurate.

7040; 0.0004 i have 7040 as more accurate and 0.004 as mprecise is this correct or is both equally precise

eyust707 · Answer

great question

eyust707 · Answer

to be completely honest I'm not entirely sure. It really depends on how your text defines these

eyust707 · Answer

is this the entire question?

eyust707 · Answer

was there a part before?

eyust707 · Answer

Precise and accurate are relative

eyust707 · Answer

what number are we going for?

anonymous · Answer

yes

anonymous · Answer

um well which of them would be more accurate i said 7040 because of the significant digits and as far as the precision i said 0.004

anonymous · Answer

but some times they coulbeequally precise

eyust707 · Answer

I think you are correct but im not 100 percent

eyust707 · Answer

start a new question and see what the others say

anonymous · Answer

okay thanks again for your help