Answer:
The time recorded as 48.9 s (option: d) is least precised as compared to other times.
Step-by-step explanation:
<em>" Precision refers to the closeness of two or more measurements to each other" .</em>
Since, in options a,b and c the time represented is quite close as they are precised to two or more decimal places.
but in option 'd' the time is precised to just one decimal place.
Hence, the time recorded as 48.9 s is least precised.
Hence, option D is the correct answer.
Answer:
143°
Step-by-step explanation:
The sum of angles in a triangle should be 180, so ∠1 = 180-53-90 = 37.
∠1 and ∠3 should add up to 180, so ∠3 must be 180-37 = 143.
2+ 3/5x -1 -1/5x =
2 -1 +3/5x - 1/5x =
1 + 2/5x
You are wrong, right answer is the last one.
X * 4x = 144
4x^2 = 144
x^2 = 36
x = 6 or -6
-6 and -24
6 and 24
Answer:
50% ................................