so you read 12 + 13 = 25 books in total, and 12 nonfiction ones.
if we take 25 to be the 100%, what is 12 off of it in percentage?
![\bf \begin{array}{ccll}amount&\%\\\cline{1-2}25&100\\12&x\end{array}\implies \cfrac{25}{12}=\cfrac{100}{x}\implies x=\cfrac{12\cdot 100}{25}\implies x=48](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7Bccll%7Damount%26%5C%25%5C%5C%5Ccline%7B1-2%7D25%26100%5C%5C12%26x%5Cend%7Barray%7D%5Cimplies%20%5Ccfrac%7B25%7D%7B12%7D%3D%5Ccfrac%7B100%7D%7Bx%7D%5Cimplies%20x%3D%5Ccfrac%7B12%5Ccdot%20100%7D%7B25%7D%5Cimplies%20x%3D48)
Answer:
3rd Matrix
Step-by-step explanation:
When you start putting the coefficients in as the matrix, you see that -9 has to be the 1st number, so that eliminates choice B and choice D as answers. You are left with choices A and C. C is the correct choice because when you plug in the second equation, your coefficient is -5, not 0.
Answer:
Step-by-step explanation:
The question is incomplete. The complete question is:
Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database (A-5). an estimate of the percentage of adults who have at some point in their life been told they have hypertension is 23.53 percent. If we select a simple random sample of 20 U.S. adults and assume that the probability that each has been told that he or she has hypertension is .24. find the probability that the number of people in the sample who have been told that hypertension will be: a) Exactly three (b) Three or more (c) Fewer than three (d) Between three and seven, inclusive
Solution:
This is a binomial probability distribution. If an adult is selected randomly, the outcome is either he has been told that he has hypertension or he has not been told. The probability of success, p would be that a randomly selected adult, x has been told. Therefore,
p = 0.24
n = 20
a)We want to determine P(x = 3). From the binomial probability distribution calculator,
P(x = 3) = 0.15
b) P(x ≥ 3) = 0.89
c) P(x < 3) = 0.11
d) P(3 ≤ x ≤ 7)
It would be P(x ≤ 7) - P(x ≥ 3)
P(x ≤ 7) = 0.92
Therefore,
P(3 ≤ x ≤ 7) = 0.92 - 0.89 = 0.03
Answer:
7.25
Step-by-step explanation:
Answer:
57 degrees
Step-by-step explanation:
Total measurement of any triangle is 180 degrees.
/_V=180-53.8-69.2=57 degrees