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Snezhnost [94]
3 years ago
12

Is 8n +6 ,2(4n +3) , and 14n equivelent?​

Mathematics
1 answer:
labwork [276]3 years ago
4 0
No, 2(4n+3) is equal to 8n+6 but since 8n + 6 aren’t like terms, they don’t add so it wouldn’t be equal to 14n. the only way it would be equal to 14n is if it were 8n+6n in which they are like terms that can be added together to equal 14n.
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mixas84 [53]
<h3>Answer:  an = 6n - 15   (Choice C)</h3>

======================================================

Explanation:

This sequence is arithmetic

The first term is a = -9

The common difference is d = 6 since we're adding 6 to each term to get the next one (eg: -3+6 = 3 or 3+6 = 9 or 9+6 = 15)

Plug those values into the arithmetic nth term formula below

an = a + d*(n-1)

an = -9 + 6*(n-1)

an = -9 + 6n-6

an = 6n - 15

--------------

As a check, let's plug in something like n = 1

an = 6n - 15

a1 = 6*1 - 15

a1 = 6 - 15

a1 = -9

We see that the 1st term is -9, which matches the sequence given

Now let's plug in n = 2

an = 6n - 15

a2 = 6*2 - 15

a2 = 12 - 15

a2 = -3

The 2nd term is -3. This also matches.

I'll let you check the other values of n to confirm the answer.

4 0
3 years ago
The equation of this line is y + 11 = 9( x + 2)
IgorLugansk [536]
Not sure what you’re asking but the answer is y=9x+7 in slop intercept form
7 0
3 years ago
What is the number? I know it isn't 290. Please I need help on this otherwise it's a detention and have several other assignment
o-na [289]

Answer:

280

Step-by-step explanation:

each individual line is a +20, therefore one line before 300 would be 300-20=280

7 0
3 years ago
Read 2 more answers
Solve the right triangle. Round decimal answers to the nearest tenth. what is angle a and angle b
Morgarella [4.7K]

Answer:

b = 12.6

Step-by-step explanation:

a*2 + b*2 = c*2

6*2 + b*2 = 14*2

36 + b*2 = 196

Subtract 36 from both sides

36 + b*2 = 196

-36             -36

b*2 = 160

Find the square root of both

b = 12.64911064  or 12.6

3 0
3 years ago
5,1,0,4,0 what is the range?
Marat540 [252]

Answer:

range: 4

Step-by-Step Explanation:

3 0
3 years ago
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