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3 years ago

What is the solution of this system of Linear equations? y=3×-2 and y-2=×

Mathematics

1 answer:

uysha [10]3 years ago

3 0

Answer:

(2, 4)

Step-by-step explanation:

Given the system of equations

y=3×-2.... 1

y-2=× ... 2

Substitute 2 into 1

y = 3(y-2) - 2

y = 3y - 6 - 2

y - 3y =-6-2

-2y = -8

y = -8/-2

y = 4

Recall that

x = y - 2

x = 4-2

x = 2

Hence the solution (x, y) is (2,4)

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3 years ago

First five term for An=n^2-2n

densk [106]

First 5 terms are: -1,0,3,8,15

Step-by-step explanation:

we will put n=1,2,3,4,5 to find first 5 terms of the sequence

Explicit formula for sequence is:

$a_n = n^2-2n$

Putting n=1

$a_1 = (1)^2-2(1)\\= 1-2\\= -1$

Putting n=2

$a_2 = (2)^2-2(2)\\= 4 - 4 \\=0$

Putting n=3

$a_3 = (3)^2-2(3)\\= 9-6\\= 3$

Putting n=4

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Putting n=5

$a_5 = (5)^2-2(5)\\= 25 - 10\\= 15$

Hence,

First 5 terms are: -1,0,3,8,15

Keywords: Arithmetic sequence, Common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

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3 years ago

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mihalych1998 [28]

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balu736 [363]

Answer:

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Step-by-step explanation:

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Ilia_Sergeevich [38]

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3 years ago

What is the solution of this system of Linear equations? y=3×-2 and y-2=×​

What is the solution of this system of Linear equations? y=3×-2 and y-2=×