Answer:
90°
Step-by-step explanation:
If you look closely at ADB you see that it is a right triangle. This means that it has a 90° angle. It also means that it measures 90°.
Answer:
95% of women have pregnancies length between 236 and 300 days.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 268
Standard Deviation, σ = 16
We are given that the distribution of length of a human pregnancy is a bell shaped distribution that is a normal distribution.
Empirical Rule:
- It states that for a normal distribution all the data lies within three standard deviation of mean.
- About 68% of data lies within one standard deviation of mean.
- About 95% of data lies within two standard deviations of mean,
- About 99.7% of data lies within three standard deviation from mean.
P(pregnancies are between 236 and 300 days)
By empirical rule, 95% of data lies within two standard deviations of mean, thus, 95% of women have pregnancies length between 236 and 300 days.
We already know the number of refrigerators, which is 5. The amount of the total appliances would be found if you added the given 17 and 5. Add them and you get 22
Your ratio should be 5 : 22
The question asking for the circumference of the wheel. The formula is c= pie times diameter . C= 3.14* 26
you get c equals 81.64 inches.