Priya measured the perimeter of a square desk and found 248 m. Noah measured the perimeter of the same desk and found 2468 mm. B
1 answer:
Answer:
Difference in their measurement will be 245532 mm
Step-by-step explanation:
We have given that Priya measured the perimeter of the desk and found the perimeter as 248 m
We know that
So 248 m = 248000 m
And Noah measured the perimeter of the same desk and found as 2468 m
We have to find the difference in their measurement
Difference will be = 248000 - 2468 = 245532 mm
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Answer:
<u>Part 1:</u> Angle = 154.3°
<u>Part 2:</u> About 2.33 Rotations
Step-by-step explanation:
Part 1:
The arc length of a circle is given by the formula
Where
- s is the arc length
- r is the radius of the circle
is the angle
**The angle are in radians and we will use radian**
When smaller gear has made 1 complete rotations ( radians), the arc length traveled is
Now, what angle is swept by the larger circle when it travels ? Put in
and r is 7 to find
:
** Since radians is 180°, we plug in 180 into
and find the degree measure:
Angle = 154.3°
Part 2:
In one complete rotation of the larger gear, it travels a distance of:
We know that the smaller circle makes 1 rotation and travels , so in
distance, it makes:
Rotations =
About 2.33 Rotations
So,
We can see that the digit 2 is 4 units to the right of the decimal point, so in order to write it in scientific notation, we will have to move the decimal point 4 places to the right to get 2.
0.000200 in scientific notation is
We can see that the digit 2 is 4 units to the right of the decimal point, so in order to write it in scientific notation, we will have to move the decimal point 4 places to the right to get 2.
0.000200 in scientific notation is