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Simora [160]
3 years ago
15

Describe how to combine like terms in the expression 3n + 4n -2

Mathematics
2 answers:
storchak [24]3 years ago
5 0
You can combine the same numbers with the same variables using the operation sign for each. For example, using your equation, you would combine the 3n and 4n which is 7n. So your equation would be
7n - 2
LiRa [457]3 years ago
5 0
Combining like terms means that if u have two terms that are the same coefficient like 3n and 4n you have to either add or subtract because You have to have only one n in one side so u add 3 to 4 and u get 7n. Another example: 3n-2= 4n you would have to the same thing which is to add both. I'm sorry I'm not the best at explaining 
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Diameter of a circle
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4 0
3 years ago
Help for 15 points . ill up it
RoseWind [281]

Step-by-step explanation:

Let P_1(-1, -8)\:\text{and}\:P_2(-4, -9)

The slope of the line through these two points is

m = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{(-9 + 8)}{(-4 + 1)} = \dfrac{1}{3}

So the slope-intercept form of the line passing through the two points is

y = mx + b = \frac{1}{3}x + b

To find b, we use either point into our equation. Let's use (-1, -8):

-8 = \frac{1}{3}(-1) + b \Rightarrow b = -\dfrac{23}{3}

Therefore, the slope-intercept form of the equation for the line is

y = \dfrac{1}{3}x - \dfrac{23}{3}

The standard form of the equation can be written as

x + 3y + 23 = 0

8 0
3 years ago
Will mark brainliest for whoever answers ^
slavikrds [6]

Answer:

B 1,3,9,27

Step-by-step explanation:

This is because a geometric sequence is multiplying or dividing by the same number throughout the sequence and this one is multiplying by 3.

6 0
3 years ago
What is the first quartile of the data set: {13, 15, 19, 35, 25}
Gekata [30.6K]

Answer:

first quartile is 14

Step-by-step explanation:

{13,15,19,25,35}

first quartile = (13+15)/2 = 14

second quartile = 19

third quartile = (25+35)/2 = 30

3 0
3 years ago
Read 2 more answers
8×6+(12-4)÷2<br> Options: 58, 52, 56, or 28
Virty [35]

<em>Answer: 52</em>

<em />

<em>Step-by-step explanation:</em>

<em>8x6+(12-4)÷2</em>

<em>Parenthesis' first</em>

<em>8x6+8÷2</em>

<em>multiplication next</em>

<em>48+8÷2</em>

<em>Division next</em>

<em>48+4</em>

<em>52</em>

6 0
3 years ago
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