Given a term in an arithmetic sequence and the common difference, find the first five terms

Mathematics

1 answer:

Elanso [62]3 years ago

7 0

Step-by-step explanation:

we come with a1

a(n) = a1 +(n-1)d

a(35) = a1 +(35-1)-10=-312

So a1=-312+340= 28

first five terms:

a1= 28

a(2) = 28 +(2-1)-10=18

a(3) = 28 +(3-1)-10=8

a(4) = 28 +(4-1)-10=-2

a(5) = 28 +(5-1)-10=-12

hope it helps

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Anna [14]

Answer:

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Step-by-step explanation:

2 just goes all the way down

80-2/40

40-2/20

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80=2x2x2x2x5

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3 years ago

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Does the point (-4, 2) lie inside or outside or on the circle x^2 + y^2 = 25?<br>

Lostsunrise [7]

Given equation of the Circle is ,

$\sf\implies x^2 + y^2 = 25$

And we need to tell that whether the point (-4,2) lies inside or outside the circle. On converting the equation into Standard form and determinimg the centre of the circle as ,

$\sf\implies (x-0)^2 +( y-0)^2 = 5 ^2$

Here we can say that ,

• Radius = 5 units

• Centre = (0,0)

Finding distance between the two points :-

$\sf\implies Distance = \sqrt{ (0+4)^2+(2-0)^2} \\\\\sf\implies Distance = \sqrt{ 16 + 4 } \\\\\sf\implies Distance =\sqrt{20}\\\\\sf\implies\red{ Distance = 4.47 }$