(2×100)+(9×10)+(6×1)+(3×1/10)+(8×1/100)= In standard form
1 answer:
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Answer:
The measured weight of the water = 4.93 g
The percentage error in measured value = 1.4%
Step-by-step explanation:
Given:
Weight of the 10-mL graduate = 42.745 g
Combined weight of graduate and 5 mL water = 47.675 g
5 mL of water should weight = 5 g
thus, actual value of 5 mL water = 5 g
Now,
The measured weight of the water
= (Combined weight of graduate + 5 mL water) - Weight of the 10-mL graduate
= 47.675 g - 42.745 g
= 4.93 g
The percentage error in measured value
=
=
or
= 1.4%
Answer:
Step-by-step explanation:
First side = a
Second side = b
Third side = c
a is three times as long as the b (a=3b). C is 50 cm shorter than a (c=50-a)
The perimeter is 370cm (a+b+c=370)
Take and solve for b;
Now b is in terms of a, and c is in terms of a, therefore if we replace in the last equation all these values, we can find a.
Add 50 on both sides.
Multiply by the reciprocal of . The reciprocal of a fraction is the inverted fraction. Therefore it is:
Now replace a in the equation to find b.
Finally, replace a in the equation to find c