90/5 would be 18 because you need to find the depth per minute. So you divide 5 by 5 and then 90 by 5. 18 feet per minute
Alright, if Victoria's age is x and her neighbor's age is n, then n+4=x as Victoria is 4 years older than her neighbor.
Since their sum is 14 or less, then x+n≤14 (less than or equal to). In addition, as n+4=x (and x-4=n by subtracting 4 from both sides), we can substitute that in to get x-4+x≤14 and 2x-4≤14. Adding 4 to both sides and dividing by 2, we get x≤9
Answer:
the answer is D-24
Step-by-step explanation:
percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
according to Chebyshev's theorem k=2.5
Chebyshev theorem:
The minimum percentage of observations that are within a given range of standard deviations from the mean is calculated using Chebyshev's Theorem. Numerous other probability distributions can be applied with this theorem. Chebyshev's Inequality is another name for Chebyshev's Theorem.
This indicates that 1 - of the distribution will be close to the mean, or within k standard deviations.
Therefore, 1 -
⇒ 1-
⇒1-
⇒
⇒0.84
percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
Learn more about standard deviations here:
brainly.com/question/16555520
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Consider ∆JWZ and ∆JKZ
WZ~KJ (given)
<u>/</u><u> </u><u>WZJ</u>~<u>/</u><u> </u>KJZ (given)
JZ~JZ (common)
Therefore,
∆JWZ~∆JKZ by SAS congruence rule.
JW~ZK by CPCT.