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2 years ago

The dot plot below shows how many chocolate chips were in each cookie Lauren brought to school.

Mathematics

1 answer:

Marta_Voda [28]2 years ago

5 0

8+9+10= 27 and 27 divided by 3 is 9. So the mean of the chocolate chips is 9

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A relay team of 4 swimmers is to be formed from a swim team with 20 member. How many different relay teams are possible?

Mars2501 [29]

<span>When order does not matter you use what is called n choose k formula

n!/(k!(n-k)!) where n is the number of things to choose from and k is the number of choices made, in this case:

20!/(4!(20-4)!)=4845</span>

5 0

2 years ago

What is the value of x?

torisob [31]

Answer:

$x=45^{o}$

Step by step explanation:

We have been given that measure of angle A is fifty five degrees, the measure of angle B is eighty degrees and the measure of angle C is x.

Since we know that sum of measures of all the three angles of any triangle equals to 180 degrees.

Let us set sum of measures of all angles of our triangle equal to 180 degrees.

$A+B+C=180^{o}$

Upon substituting our given values in our equation we will get,

$55^{o}+80^{o}+x=180^{o}$

$135^{o}+x=180^{o}$

$x=180^{o}-135^{o}$

$x=45^{o}$

Therefore, the measure of angle x equals to 45 degrees.

3 0

2 years ago

Simplify: (x - 7)(6x - 3)

alina1380 [7]

Answer:

C. 6x² -45x + 21

Step-by-step explanation:

( x - 7) (6x - 3)

= x(6x - 3) -7 ( 6x - 3)

= 6x² - 3x - 42x + 21

= 6x² - 45x + 21

Hope it will help you :)

3 0

2 years ago

Read 2 more answers

Which statement is correct?

Westkost [7]

tha range of the function is all real number greater than 0

7 0

2 years ago

Help me solve for x plz

nadezda [96]

X +70 =30
x = -40 isolate x

4 0

2 years ago