3 years ago

Solving quadratic equation using the completing the square (a).9k²+5k=2

Mathematics

1 answer:

Margarita [4]3 years ago

6 0

Answer:

Step-by-step explanation:

everything can be found in the picture

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3 years ago

-8(7 + x) = 137 What can be used to solve this problem

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3 years ago

What is the 38th term of 459,450,441,..

galina1969 [7]

Answer:

The 38th term of 459,450,441,.. will be:

$a_{13}=351$

Step-by-step explanation:

Given the sequence

$459,450,441,..$

An arithmetic sequence has a constant difference 'd' and is defined by

$a_n=a_1+\left(n-1\right)d$

computing the differences of all the adjacent terms

$450-459=-9,\:\quad \:441-450=-9$

$d=-9$

The first element of the sequence is

$a_1=459$

so the nth term will be

$a_n=-9\left(n-1\right)+459$

$a_n=-9n+468$

Putting n=38 to find the 38th term

$a_n=-9n+468$

$a_{13}=-9\left(13\right)+468$

$a_{13}=-117+468$

$a_{13}=351$

Therefore, the 38th term of 459,450,441,.. will be:

$a_{13}=351$

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3 years ago

Solving quadratic equation using the completing the square (a).9k²+5k=2​

Solving quadratic equation using the completing the square (a).9k²+5k=2