Answer:
The answer is 68°.
Step-by-step explanation:
Following the arc length equation:
s = r * θ where s is arc length, r is radius of the circle, and θ is the angle in radians.
12 is the Radius of the Circle and therefore solve for θ:
θ = 
= 
= 
rad. or radians
Now, convert the radians to degrees:
= 68°
Hello!
1. To convert minutes to hours, we must multiply the number of minutes by 60, because that is how many minutes there are in an hour.
2. 1 pint = 16 ounces
16 × 8 = 128
Fernando bought 128 fluid ounces of milk.
3. 1 quart = 0.25 gallons
0.25 × 8 = 2
2 gallons are equivalent to 8 quarts.
4. Because when you divide 25 by 8, the result is greater than 3.
5. By dividing 6,400 by 2,000, because that is how you will find the exact equivalent of 6,400 pounds in tons.
7. 1 pound = 16 ounces
16 × 80 = 1,280
1,280 ounces is equivalent to 80 pounds.
9.
The missing value in the table is 918, because:
1 yard = 3 feet
3 × 306 = 918
306 yards = 918 feet
Thanks! Have a good summer
Answer:
Mailing preparation takes 38.29 min max time to prepare the mails.
Step-by-step explanation:
Given:
Mean:35 min
standard deviation:2 min
and 95% confidence interval.
To Find:
In normal distribution mailing preparation time taken less than.
i.eP(t<x)=?
Solution:
Here t -time and x -required time
mean time 35 min
5 % will not have true mean value . with 95 % confidence.
Question is asked as ,preparation takes less than time means what is max time that preparation will take to prepare mails.
No mail take more time than that time .
by Z-score or by confidence interval is
Z=(X-mean)/standard deviation.
Z=1.96 at 95 % confidence interval.
1.96=(X-35)/2
3.92=(x-35)
X=38.29 min
or
Confidence interval =35±Z*standard deviation
=35±1.96*2
=35±3.92
=38.29 or 31.71 min
But we require the max time i.e 38.29 min
And by observation we can also conclude the max time from options as 38.29 min.
