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RUDIKE [14]
3 years ago
10

Is the sequence 5, 9, 15, ... an arithmetic sequence? Explain. Type your answer below.

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0
It is not an arithmetic sequence because an arithmetic sequence has to have an addition pattern, this doesn't. 5+4=9 but 9+4 doesnt equal 15. It would equal 13, then the squence would of looked like this 5,9,13. Between every number in the squence, it has to have the same number your adding in between
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X8>2÷(3+22+1) ⋅ 2 help me plz
s2008m [1.1K]

Answer:

I think its 8x

6 0
3 years ago
A man bought a bicycle for $400 and sold it at a loss of 35%. How much money did he lose?
DedPeter [7]
If he bought the bike for $400 and lost 35% of his profit, you would divide 35 by 100. Next, you would multiply that number (0.35) by 400. When you do that, you get an answer of $140. In conclusion, if he bought the bike for $400 and sold it at a loss of 35%, he would lose $140 from that $400. 

Additionally, if you wanted to know what exactly he sold it for, you would simply subtract 140 from 400. Which would be $260.

So, he bought the bike for $400, but when he resold it, he lost $140 of that pay. Basically, he resold the bike for $260. 

I hope this helps! :) Let me know if you need help with anything else!
8 0
3 years ago
What is the root of this equation? <br>2x^2 - 4x + 9 = 0​
faust18 [17]

Answer:

x = 1 + i sqrt(7/2) or x = 1 - i sqrt(7/2)

Step-by-step explanation:

Solve for x:

2 x^2 - 4 x + 9 = 0

Divide both sides by 2:

x^2 - 2 x + 9/2 = 0

Subtract 9/2 from both sides:

x^2 - 2 x = -9/2

Add 1 to both sides:

x^2 - 2 x + 1 = -7/2

Write the left hand side as a square:

(x - 1)^2 = -7/2

Take the square root of both sides:

x - 1 = i sqrt(7/2) or x - 1 = -i sqrt(7/2)

Add 1 to both sides:

x = 1 + i sqrt(7/2) or x - 1 = -i sqrt(7/2)

Add 1 to both sides:

Answer:  x = 1 + i sqrt(7/2) or x = 1 - i sqrt(7/2)

4 0
3 years ago
Factor this expression: 12 + 20
liberstina [14]

Answer:

<h2>12 + 20 = 4 × (3 + 5)</h2>

Step-by-step explanation:

12 = 4 × 3

20 = 4 × 5

12 + 20 = 4 × 3 + 4 × 5 = 4 × (3 + 5)

5 0
3 years ago
The volume of 10,000 drops of a liquid is 100 fluid ounces.
denis-greek [22]

<u>ANSWER</u>: 0.1 ounces

Step-by-step explanation:

Volume of 10,000 drops of a liquid=100 fluid ounces

Volume of 1 drops of a liquid=(100/10,000) fluid ounces

Volume of 10 drops of a liquid=(100/10,000)*10 fluid ounces

=(1/10) ounces

=0.1 ounces [ANS]

5 0
3 years ago
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