Answer:
10
Step-by-step explanation:
Answer:
d≤7
Step-by-step explanation:
-10d≥-70
d≤7
Answer:
△DEF is rotated about point N to △D′E′F′ .
△DEF→Pre-Image ,△D′E′F′ → Image
1. D N ≅ D' N' [ true]
2.The corresponding side lengths in the image and the pre-image are not equal. [ False ]
3.All corresponding points on the image and pre-image are equidistant to point N. [ False]
4.The image is the same size and shape as the pre-image. [True]
The interval around the mean that contains 95% of the airfare is (250.2,524.2).
Normal Distribution is bell shaped and symmetrical in nature.
We use standard normal to find probabilities of normal distribution
Normal distributions have key characteristics that are easy to spot in graphs: The mean, median and mode are exactly the same. The distribution is symmetric about the mean—half the values fall below the mean and half above the mean. Diagram below shows standard normal figure.
In a normal distribution, 95% of the values fall between mean±2*sd
Give: mean=387.20
sd=68.50
So the interval around the mean that contains 95% of the airfare is (250.2,524.2).
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