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Hoochie [10]
3 years ago
11

Given an = 3n-5, what is the common difference?

Mathematics
1 answer:
belka [17]3 years ago
5 0

Answer:

3

Step-by-step explanation:

A common difference is found in arithmetic sequences. The simplified formula for arithmetic sequences, which is what is used here, is a_{n}=dn-a_{0}. Where d is the common difference and a_{0} is the zeroth term. So, in the given equation 3 must be the common difference.

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Did I do it right or is it wrong ?
Shkiper50 [21]

Answer:

Hope this helps. Mark as brainliest please!

Step-by-step explanation:

10-3^3/9

10-27/9

10-3

7

8 0
3 years ago
Can someone help me plz lol I can't figure this one out
lidiya [134]

4NO+6H_{2} O\Leftrightarrow4 NH _{3}+5O_{2}

Step-by-step explanation:

NO+H_{2} O\rightarrow NH _{3}+O_{2}

4NO+6H_{2} O\Leftrightarrow4 NH _{3}+5O_{2}

8 0
3 years ago
--/: Lesson Quiz<br> Why is subtracting an expression similar to distributing a -1?
o-na [289]

Answer:

You increase each term inside the parentheses by -1 in order to subtract each term, since the subtraction is the additive inverse

3 0
3 years ago
Susan drove at an average speed of 30 miles per hour for the first 30 miles of a trip and then at an average speed of 60 miles p
maxonik [38]

Answer: option B is the correct answer.

Step-by-step explanation:

Susan drove at an average speed of 30 miles per hour for the first 30 miles of a trip.

Time = distance/speed

This means that time spent by Susan in travelling the first 30 miles would be

Time = 30/30 = 1 hour

He travelled at an average speed of 60 miles per hour for the remaining 30 miles of the trip.

Time = 30/60 = 0.5 hours

Total distance travelled is 30 + 30 = 60 miles.

Total time spent = 1 + 0.5 = 1.5 hours

Speed = distance/time

Average speed = 60/1.5 = 40 miles per hour.

7 0
3 years ago
What is the measure of the hypotenuse?
SOVA2 [1]
<h2><em>Answer:</em></h2><h3><em>1</em><em>3</em></h3>

<em>solution \\ hypotenuse = x \\ base = 12 \\ perpendicular = 5 \\ using \: pythagoras \: theorem \\  {h}^{2}  =  {p}^{2}  +  {b}^{2}  \\ or \:  {x}^{2}  =  {5}^{2}  +  {12}^{2}  \\ or \:  {x}^{2}  = 25  + 144 \\ or \:  {x}^{2}  = 169 \\ or \: x =  \sqrt{169}  \\ x = 13 \\</em>

<em>hope </em><em>it</em><em> helps</em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

3 0
3 years ago
Read 2 more answers
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