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My name is Ann [436]
3 years ago
9

Simplify the expression to standard form -2.5(-3+ 4n+8)

Mathematics
2 answers:
SpyIntel [72]3 years ago
7 0

Answer:

distribute to get:

7.5 -10n -20

-10n - 12.5

e-lub [12.9K]3 years ago
5 0

Answer:

-12.5-10n

Step-by-step explanation:

jjjjjjjvuvubibuvuvuvibibivi

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The following data points represent the number of hours each of the staff members at Daniel's Department Store slept on Thanksgi
Slav-nsk [51]

Sort the data into this order:

2.6, 3, 4.9, 5, 5, 6, 6, 7.9, 8, 8.2

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there are 10 data points in total, therefore the Interquartile Range = between the 5th and the 6th numbers, which are 5 and 6

(5+6)/2= 5.5

5 0
4 years ago
How to write fractions in simplest form?<br> ( I give brainliest )
diamong [38]

It's pretty easy, take the example of this fraction... \frac{2}{4}

What you do in here is that you note down the <em>factors</em> of 2 and 4 over here.

<u><em>Factors of 2 and 4:</em></u>

2 = 1, 2

4 = 1, 2, 4

Now, you see that the <em>GREATEST</em> Common Factor (GCF) over here is 2.

Now that we see the GCF of 2 and 4 is 2, what you do next is, you have to <u>divide 2 by 2 AND 4</u><u><em>. </em></u>When you do this, you will get your results. 2 = 1 and 4 = 2, now put this in the fraction form again, meaning switch 2 with 1, and 4 with 2 in the fractions... \frac{1}{2}

So your simplified fraction is \frac{1}2}!

8 0
2 years ago
Read 2 more answers
Which of the following best describes the graph shown below
nataly862011 [7]
Since the graph of a linear function is a straight line, so the first option is not correct.
The given graph is of a function because for a particular value of y, there is a fixed value of 'x'.
Also, since there are two different values of x having same value for y, so the function is not one-to-one. For example, If y = f(x) is the function, then f(1.5) = f(-1) = 3.
Therefore, the graph represents a function, but it is not one-to-one.
Thus, the correct option is (A) THE ANSWER Is A
8 0
2 years ago
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Solve the system using elimination. x + 2y = –6 3x + 8y = –20 (–4, –1) (–4, 4) (–1, –4) (3, 1)
Orlov [11]

x + 2y =  - 6 >  >  > 3x =  - 18 - 6y
- 18 - 6y + 8y =  - 20 >  >  > 2y =  - 2 >  > y =  - 1
so x=4
6 0
4 years ago
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I need the solution
Nataly [62]

The only thing you can do here is to try to simplify, so I'll assume that's what you want to do.

\dfrac{b^2-a^2}{2a^2+ab-3b^2}

The numerator is a difference of squares, so it's easy to factorize:

b^2-a^2=(b-a)(b+a)

In the denominator, we factorize by grouping:

2a^2+ab-3b^2=2a^2-2ab+3ab-3b^2=2a(a-b)+3b(a-b)=(2a+3b)(a-b)

So we have

\dfrac{b^2-a^2}{2a^2+ab-3b^2}=\dfrac{(b-a)(b+a)}{(2a+3b)(a-b)}=-\dfrac{b+a}{2a+3b}

5 0
4 years ago
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