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Brrunno [24]
3 years ago
7

Can someone help me with this one

Mathematics
1 answer:
Reptile [31]3 years ago
5 0

Answer:

The rule is 3(5)^(n-1) where n is the term number.

Step-by-step explanation:

The constant multiplier = 15/3 = 5.

Checking that this is correct 75/15 = 5,  375 / 75 = 5.

So for term number 1 , the value is 3 , the expanded form is 3 * (5)^(1-1) and the simplified form  is 3*5^0 = 3.

Term number 2, the value is 15 , the expanded form is 3 * 5^(2-1) and the simplified form is 3 * 5^1 =15.

The other rows are calculated in the same way.

This is a Geometric sequence with common ratio 5.

The rule for the sequence is 3(5)^(n-1).

You might be interested in
a satelite moves at the speed of 27,000 kilometers per hour what 4 number could be the actually speed of the satelite
Anvisha [2.4K]
If the satellite moves at a speed of 27,000 km p/h, your answer depends on the question.

This could be written in an algebraic expression, such as:

27,000x = S                 [for S stands for the ultimate speed of the satellite]

Of course, if this is a 3rd grade level question, I highly doubt they have even gotten started to including the alphabet into math. 

So, I would suggest plugging 4 into X.
To explain this to her, just say that the speed needs to be multiplied by the amount of hours it has traveled. (I got 4 because there is a '4' in the question instead of 'for').

Meaning,  
27,000 x 4 = 108,000 km per 4 hours

If her teacher decides to ask why that number, have her explain the question did not make sense so she plugged in a 4 to find an answer to a certain amount of hours. 

Hope that helps a bit with the confusion!
7 0
3 years ago
HELP!!!!<br> 2x+y= 20<br> 3x+4y= 40
bagirrra123 [75]

Answer:

(8,4)?

Step-by-step explanation:

3 0
3 years ago
Determine o valor das seguintes expressões.
Alisiya [41]

a). (17º-17'-17")  =  17<span><span>º + 17'/60 + 17"/3600  =  </span>17.288055...</span><span>º

</span>17.288055...º / 4 = 4.322...º =  <em>4</em><span><em>º - 19' - 19.25"  </em><em /></span><span><== <span>a resposta</span>

b) (18º: 8 + 23º: 4 - 8º)

18</span><span>º / 8  =  2.25</span><span>º
23</span><span><span>º / 4  =  </span> 5.75</span><span>º

(2.25</span><span>º + 5.75</span><span><span>º </span>- 8º) = <em>0</em></span>  <== a resposta


6 0
3 years ago
Hey cutie pls help me thank u !!
andrey2020 [161]
F(3)=5 // f(3)=2(3)-1 = 5
6 0
3 years ago
50 POINTS!!!
eimsori [14]
MARK ME AS BRAINLIEST Thank You

Answer is B
4 0
3 years ago
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