Answer: do you still need help with it?
Explanation:
Answer: The system’s host star, called TRAPPIST-1, is what is known as an ultracool dwarf.
Explanation:
Also called 2MASS J23062928-0502285, TRAPPIST-1 is an ultracool dwarf star that hosts three planets: TRAPPIST-1b, c, and d.
Never before planets had been found around ultracool dwarf stars, and they are considered as potentially habitable and, therefore, suitable for life outside our solar system.
Yes it’s better to listen to the government because they have a higher power than you
The standard deviation of the average age of a breed of dog is said to be 3.69.
<h3>What is the standard deviation about?</h3>
Note that we take:
- x = dog age has mean 19.5
- Unknown standard deviation.
Hence:
z = (x - mean) /SD is distributed N (0,1) - mean o standard deviation 1 (standard normal)
Since 20% of dogs are known to be older than 22.6 years:
So 22.6 years is said to be 80th percentile,
Since z matching to 80th percentile (using the standard normal table) s is <em>0.84.</em>
Then one need to plug z, x which is = 22.6
mean = 19.5 into the stated z equation:
Hence,
0.84 = (22.6 - 19.5)/SD
SD = (22.6 - 19.5)/0.84
= 3.69
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Answer:
On the ACT, you can often figure out what's being tested based on the underlined phrase and the answer choices. If you see that there are singular and plural forms of the same verb in the answer choices, determine if there's an error in subject-verb agreement.4 June 2015
Explanation:
