Use the distance formula:
Substitute in the known values.
Subtract.
Find the powers.
Add.
Find two factors of .
Find the two factors of .
Move the pair outside the square root.
The correct option is (A)
Explanation:
Given expression:
Which is (Option A)
= 256 =
(Check)
Answer:
it's 2 because they went from earth to mars
Reading - 44
Sports - 55
Video games - 55
Music - 66
--------------------------
= 220
Reading = (44/220) x 100 = 20%
Sports = (55/220) x 100 = 25%
Video games -> same as sports
Music = (66/220) x 100 = 30%
20 + 25 + 25 + 30 = 100%
hope this helps :)
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