Answer:
4.5° per day
Step-by-step explanation:
Temperature Drop:
3 Days = 13.5°
1 Day = 13.5° ÷ 3 = 4.5°
The temperature dropped 4.5 degrees per day
Hope this helps :)
Answer:
A. Use the two-sample t-methods when a sample was taken from each of two populations (i.e. two groups being compared) and the population standard deviations are not known.
Step-by-step explanation:
T-distribution:
When the population standard deviation is not known, the t-distribution is used.
If a sample was taken from one population, we use the one-sample method, while if there is a comparison of two populations, the two-sample method is used, and thus, the correct answer is given by option A.
21+21= 42 cookies minus 4 = 38 cookies
38/3= 12.66(round down to 12)
She made 12 bags with 3 in Each which is 36, so 2 were left over
Answer:
C
Step-by-step explanation:
When ever a problem gives information about parallel lines, look for Alternate Interior angles.
Answer:
19.8m
Step-by-step explanation:
In the attached diagram:
- The man's eye level is at point A,
- The height of the tree is BC.
- The angle of elevation at A is 61 degrees.
- The distance of the man at A to the tree BC is 11 meters.
This forms the right triangle ABC.
We want to determine the height labeled h.
Using Trigonometry:
The height of the tree is 19.8 meters to the nearest tenth of a meter.
