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Nostrana [21]
3 years ago
7

Find the first four terms of the sequence an = 5n-1.​

Mathematics
1 answer:
viva [34]3 years ago
3 0

Answer:

let's see what to do buddy...

Step-by-step explanation:

" First four terms " means :

t(1) , t(2) , t(3) , t(4)

t(1) = a(1) = 5(1) - 1 = 5 - 1 = 4 \\ t(2) = a(2) = 5(2) - 1 = 10 - 1 = 9 \\ t(3) = a(3) = 5(3) - 1 = 15 - 1 = 14 \\ t(4) = a(4) = 5(4) - 1 = 20 - 1 = 19 \\  \\ t(1) = 4 \\ t(2) = 9 \\ t(3) = 14 \\ t(4) = 19

So the first four terms

are : 4 , 9 , 14 , 19

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Find its x-coordinate.
Ilya [14]

Answer:

2.5

Step-by-step explanation:

The formula to find the midpoint of a line segment: (\frac{1}{2}x_{1} + \frac{1}{2}x_{2}, \frac{1}{2}y_{1} + \frac{1}{2}y_{2})

<u><em>Where:</em></u>

x_{1} = -5\\x_{2} = 10\\y_{1} = 9\\y_{2} = 8

1) Substitute the values into the midpoint formula.

(\frac{1}{2}*-5 + \frac{1}{2}*10, \frac{1}{2}*9 + \frac{1}{2}*8)

2) Solve it.

= (-2.5 + 5, 4.5 + 4)

= (2.5, 8.5)

7 0
2 years ago
Each of the past 7<br> days, Frank traveled <br> 37.8miles. How many miles did he travel in all?
ValentinkaMS [17]

37.8 x 7 = 264.6

Check:

264.6/7 = 37.8

Frank traveled 264.6 miles altogether in the past 7 days.

Hope this Helps!!

7 0
3 years ago
Please help with 3 thank you!
Troyanec [42]

Answer:

Step-by-step explanation:

7 0
3 years ago
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Triss [41]

Answer:

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Step-by-step explanation:

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2 years ago
Select two values of x that are roots of this equation (picture included)<br><br> x^2+2x-5=0
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Step-by-step explanation:

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Read 2 more answers
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