Answer:
Answer: is answer hope this helps
Step-by-step explanation:
Answer:
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Class 11
>>Physics
>>Units and Measurement
>>Errors in Measurement
>>You measure two quantities ...
Question
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You measure two quantities as A=1.0m±0.2m, B=2.0m±0.2m. We should report correct value for
AB
as
Medium
Solution
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Correct option is
D
1.4m±0.2m
Here, A=1.0m±0.2m, B=2.0m±0.2m
AB=(1.0m)(2.0m)=2.0m
2
AB
=
2.0m
=1.414m
Rounding off to two significant figures, we get
AB
=1.4m
AB
ΔAB
=
2
1
(
A
ΔA
+
B
ΔB
)=
2
1
(
1.0
0.2
+
2.0
0.2
)=
2
0.3
Δ
AB
=
2
0.3
×
AB
=
2
0.3
×1.414=0.212m
Rounding off to one significant figure, we get
Δ
AB
=0.2m
The correct value for
AB
is 1.4m±0.2m
Answer:
14.4
Step-by-step explanation:
Answer:
2=5
4=6
6=7
8=8
Step-by-step explanation:
The formula is 4+.5(x)=
So multiply 0.5 by 2 which gives you 1 then add 4 which gives you 5.
To get 6 for 4, you multiply 0.5 by 4 which gives you 2 then add 2+4.
for 6, multiply 0.5 x 6=3 and then 3+4= 7
for 8, multiply 0.5 x 8=4 then add 4+4= 8
Glad to help you! :)
A ) 2 ( x+ 4 )
B) 3 ( x - 4 )
C) 2(3x+2)
d) 9(2x-1)
