All categories

1 year ago

Distribute to create an equivalent expression with the fewest symbols possible. 6(5x-3)

1 answer:

5 0

Using the distributive property to write an equivalent expression 6(5x - 3), the equivalent expression is 30x - 18

<h3>How to use the distributive property to write an equivalent expression.</h3>

The expression is given as:

6(5x - 3)

The distributive property states that:

a(b + c) = ab + ac

So, the expression 6(5x - 3) becomes

6(5x - 3) = 6 * 5x - 6 * 3

Evaluate the product

6(5x - 3) = 30x - 18

Hence, by using the distributive property to write an equivalent expression 6(5x - 3), the equivalent expression is 30x - 18

Read more about equivalent expression at

brainly.com/question/2972832

#SPJ1

You might be interested in

You scored a 91 on a test with bonus points. you got 4 bonus points how many points did you score before the bonus points

Alex Ar [27]

You need to subtract the bonus points form the final score: 91-4=87

3 0

3 years ago

Read 2 more answers

Please help a friend

choli [55]

Answer:

Step-by-step explanation:

8 0

3 years ago

Convert 100 kg into mg<br> help?

vazorg [7]

Answer:

100000000

Step-by-step explanation:

7 0

3 years ago

Don’t troll I need a answer!

Andre45 [30]

A)(2x+48x)-7 (6x•9x)+32

6 0

2 years ago

Read 2 more answers

2. In your own words, explain HOW to find the standard deviation of this data set. (20 points) 3. What does the standard deviati

Ket [755]

Answer:

$\sigma = 11.28$ --- Standard deviation

Step-by-step explanation:

Given

See attachment for graph

Solving (a): Explain how the standard deviation is calculated.

<u>Start by calculating the mean</u>

To do this, we divide the sum of the products of grade and number of students by the total number of students;

i.e.

$\bar x = \frac{\sum fx}{\sum f}$

So, we have:

$\bar x = \frac{50 * 1 + 57 * 2 + 60 * 4 + 65 * 3 +72 *3 + 75 * 12 + 77 * 10 + 81 * 6 + 83 * 6 + 88 * 9 + 90 * 12 + 92 * 12 +95 * 2 + 99 * 4 + 100 * 5}{1 + 2 + 4 + 3 +3 + 12 + 10 + 6 + 6 + 9 + 12 + 12 +2 + 4 + 5}$

$\bar x = \frac{7531}{91}$

$\bar x = 82.76$

Next, calculate the variance using the following formula:

$\sigma^2 = \frac{\sum f(x - \bar x)^2}{\sum f}$

i.e subtract the mean from each dataset; take the squares; add up the squares; then divide the sum by the number of dataset

So, we have:

$\sigma^2 = \frac{1 * (50 - 82.76)^2 +...................+ 5 * (100 - 82.76)^2}{91}$

$\sigma^2 = \frac{11580.6816}{91}$

$\sigma^2 = 127.26$

Lastly, take the square root of the variance to get the standard deviation

$\sigma = \sqrt{\sigma^2}$

$\sigma = \sqrt{127.26}$

$\sigma = 11.28$ --- approximated

<em>Hence, the standard deviation is approximately 11.28</em>

Considering the calculated mean (i.e. 82.76), the standard deviation (i.e. 11.28) is small and this means that the grade of the students are close to the average grade.

8 0

2 years ago