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Chapter 5: Q6 (page 189)

Find the average of the following numbers: 4 and 鈭�7.

Short Answer

Expert verified

The average of the numbers 4 and 鈭�7is 鈭�1.2.

Step by step solution

01

Step 1. Apply the concept of the average of numbers.

The average of two numbers is calculated by adding up all the numbers, then dividing the total by the count of numbers.

02

Step 2. Find the sum of the numbers.

Here the numbers are 4,鈭�7.

Calculate the sum of the numbers as follows:

Sumofthenumbers=4+鈭�7=4鈭�7=鈭�3

Count of the numbers =2

03

Step 3. Find the average.

Divide the sum of the numbers to the count of the numbers to find the average of the numbers as follows:

Average=鈭�32=鈭�1.5

Therefore, the average of the numbers is 鈭�1.5.

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Most popular questions from this chapter

In the exercise 3 quad.ABCD is a parallelogram. Find the values of x, y, and z.

Each figure in Exercises 19-24 is a parallelogram with its diagonals drawn. Find the values of x and y.

State the principal definition or theorem that enables you to deduce, from the information given, that quadrilateral SACK is a parallelogram.

鈭�SKC鈮�鈭�CAS;鈭�KCA鈮�鈭�ASK

Find something interesting to prove. Then prove it. Answers may vary.

Given: 鈻�ABCD;鈭�1鈮�鈭�2

Given: parallelogram ABCD; DE炉鈯�AC炉; BF炉鈯�AC炉.

Prove: DEBF is a parallelogram.
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