Answer:
In total there are 50 students.
Step-by-step explanation:
Since in a group of students 20 study account, 21 study mathematics, 18 study history, 7 study account only, 10 study mathematics only, 6 study account and mathematics only and 3 study mathematics and history only, to determine how many student are there altogether the following calculation must be performed:
7 + 10 + 6 + 3 = 26
Account = 20 - 7 - 6 = 7
Mathematics = 21 - 10 - 6 - 3 = 2
History = 18 - 3 = 15
26 + 7 + 2 + 15 = X
50 = X
Therefore, in total there are 50 students.
Answer:
1. 5
2. 6
3. 1
4. 4
5. 2
6. 3
Step-by-step explanation:
→<u>Number 1 is paired with explanation 5</u>, because it explains how a certain pair can be associated with one another, and provides the example of corresponding angles.
→<u>Number 2 is paired with explanation 6</u>, because the explanation states how angles are paired with one another based on the correspondence between them.
→<u>Number 3 is paired with explanation 1</u>, because the explanation states how sides are paired with one another based on the correspondence between them.
→<u>Number 4 is paired with explanation 4</u>, because the explanation is talking about how figures can be congruent to one another.
→<u>Number 5 is paired with explanation 2</u>, because the explanation states the definition of an included angle.
→<u>Number 6 is paired with explanation 3</u>, because the explanation states the definition of an included side.
$34 is a proper 20% tip on a $171.81 dinner. Move the decimal point twice to the left, then multiply that twice.
Answer:
The first quartile of the IQ scores of adults is 82.26.
Step-by-step explanation:
The first quartile is the value that is greater than 25% of the observations and less than 75% of the observation.
The formula to compute the first quartile (Q₁) of a Normal distribution is:
The mean and standard deviation of the IQ scores of adults are:
Compute the first quartile value as follows:
Thus, the first quartile of the IQ scores of adults is 82.26.
3x-4=-31
+4 +4
3x=27
X=9
Hope this helps
