Algebra
posted by Nicole .
Which equation shows an exact computation?
A. 12/7 = 1.714
B. 2π = 44/7
C. 22/7x14 = 44
D. 2√2 = 2.818
And if possible, could you explain what exact computation is? Thank you.

44 is exactly 22/7 * 14 or 22*2
all the others are approximations where you could carry any number of decimal places after the decimal point. Try them with your calculator. 
So they have to equal the exact number, even when you round up?

Exact, no rounding

Oh ok, thanks.
Respond to this Question
Similar Questions

Math
Use a sum or difference identity to find the exact value of sin225° a. (√2  √6)/4 b. (√6  √2)/4 c. (√6 + √2)/4 d. (√2  √6)/4 is it A? 
Math
Use an addition or subtraction formula to write the expression as a trigonometric function of one number, and then find its exact value. (tan(π/2)+tan((2π)/3)) / (1tan(π/2)tan((2π)/3)) Answer=__________ Exact value … 
Math
Determine the exact value of cos 465 degrees a) √3 + √2/2 b) √2 + √3√2/4 c)√2  √3√2/4 d)2+√2√3√2/4 
Precalculus
Determine the exact value of cos 465 degrees a) √3 + √2/2 b) √2 + √3√2/4 c)√2  √3√2/4 d)2+√2√3√2/4 
PreCalc : Find the Exact Value of the Expression
Find the exact value of the expression without a calculator: sin(3π/4+5π/6) I've done: sin(9π/12 + 10π/12) =sin(19π/12) What do I do now? 
Algebra  Dividing Radicals
A landowner wishes to construct a fence around a small section of her property. The fence is rectangular and is (3√5)/√7 meters wide and (2√3)/√5 meters long. What is the exact perimeter of the fence? 
calculus
I really don't know where to start or go with this question...There aren't any similar examples in my book so if you could walk me through it so I can be prepared for my test  that would be great! Thanks. (a) Approximate √26 … 
Math Help
Hi! Can someone help check this for me and see if I'm doing it right? 
algebra
Solve. Simplify your answer. Type an exact answer using radicals as needed. y^2 + 31 = 12y Solution y = {8.236067978, 3.763932022} 1. y =(12√20)/2=6√ 5 = 3.764 2. y =(12+√20)/2=6+√ 5 = 8.236 Which would be … 
Math
Completely bemused, do not know how to get the answer. a)8π b)7√2 c)27√π d)7√×7√×1 13 Determine the exact total surface area of a sphere with radius 2√2 metres. a) An inverted cone with side …