79 dollars divided by 50 pounds equals 1.58 so he made 1.58 dollars for every 1 pound so for question 10 thomas traded 160 pounds so 160 times 1.58 which equals 252.8 and for question 11 we just answered it to get question 10. question 10 is ~~$252.8~~ and question 11 is ~~$1.58~~
Answer:
C
Step-by-step explanation:
noting that
= i
Given
![\sqrt{-80}](https://tex.z-dn.net/?f=%5Csqrt%7B-80%7D)
= ![\sqrt{16(-1)(5)}](https://tex.z-dn.net/?f=%5Csqrt%7B16%28-1%29%285%29%7D)
=
×
× ![\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B5%7D)
= 4i
→ C
Answer:
A) 0.0107
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean
and standard deviation
, the z-score of a measure X is given by:
![Z = \frac{X - \mu}{\sigma}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Csigma%7D)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 440 seconds and a standard deviation of 40 seconds.
This means that ![\mu = 440, \sigma = 40](https://tex.z-dn.net/?f=%5Cmu%20%3D%20440%2C%20%5Csigma%20%3D%2040)
Find the probability that a randomly selected boy in secondary school can run the mile in less than 348 seconds.
This is the p-value of Z when X = 348. So
![Z = \frac{X - \mu}{\sigma}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Csigma%7D)
![Z = \frac{348 - 440}{40}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7B348%20-%20440%7D%7B40%7D)
![Z = -2.3](https://tex.z-dn.net/?f=Z%20%3D%20-2.3)
has a p-value of 0.0107, and thus, the correct answer is given by option A.
Answer:
<h2>_________</h2><h2>1/8=12x</h2><h2>x=1/12×8</h2><h2>x=1/96</h2><h2>x=0.0104</h2><h2>__________</h2>
The written form is one hundred and twenty one point zero six