5/6+(-1 1/6) = 5/6-7/6 = -2/6 = -1/3
answer: Put the sum 2 marks to the left of 0 (to place -1/3).
Answer: 48 students
Step-by-step explanation:
Probability of missing class= 0.16
Total number of students= 300
Expected number of students to miss class will be probability of missing class multiplied by total number of students.
= 0.16 × 300
= 48
The total number of students expected to miss class are 48 students.
Using sampling concepts, one sample of 5 high schools in the city of Chicago is given by:
Englewood Stem, Hyde Park, Lake View, Marshall, Noble - UIC.
<h3>What is the missing information?</h3>
The problem is incomplete, but researching it on a search engine, it gives us a list of 15 high schools in Chicago, and asks us to take a sample of 5.
<h3>What is population and sample?</h3>
- Population: Collection or set of individuals or objects or events whose properties will be studied.
- Sample: The sample is a subset of the population, and a well chosen sample, that is, a representative sample will contain most of the information about the population parameter. A representative sample means that all groups of the population are inserted into the sample.
Hence, from the concepts of sample and populations, the sample of 5 means that we have to select 5 schools from the 15 listed, hence they are:
Englewood Stem, Hyde Park, Lake View, Marshall, Noble - UIC.
More can be learned about sampling concepts at brainly.com/question/25122507
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First, you need to get rid of the fraction by multiplying both sides by 20 and you would get:
4(x + 2) = 5(x + 6)
Now, you need to get rid of the parenthesis by distributing:
4x + 8 = 5x + 30
Subtract both sides by 5x:
-x + 8 = 30
Subtract both sides by 8:
-x = 22
Now, divide both sides by -1:
x = -22
P.S.: You don't really need a calculator to solve.
Your answer is going to be angles 1 & 2 are congruent.
This is because they are a pair of alternate exterior angles.
