3 years ago

Find the mean of the following scores on a math test: 73, 54, 73, 93, 54 Round to the nearest whole number if necessary

Mathematics

1 answer:

elena55 [62]3 years ago

8 0

Hey!

To find mean, add all the numbers and divide by how many numbers there are.

$73 + 54 + 73 + 93 + 54 = 347$

There are 5 numbers. Divide 347 by 5

$347 \div 5 = 69.4$

<em>That means the mean is 69.4</em>

$\framebox{Mean = 69.4}$

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Complete the square on the following quadratic x2+10x+9=0

kakasveta [241]

Given a quadratic equation $x^{2} +ax+c=0$

1. the first thing we do when we want to compete the square, is write the coefficient of x as 2 times a number.

In our case the coefficient of x is 10, so we write 10 as 2*5

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