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3 years ago

Which polynomial is factored completely?

Mathematics

1 answer:

Usimov [2.4K]3 years ago

8 0

Answer:

121x2 + 36y2

Step-by-step explanation:

= (4x + 4)(x + 1)

= 4(x + 1)(x + 1)

= 4(x + 1)2 and is hence the fully factored form

not sure bout the rest though...... it may have mistakes in the question forms.

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Answer:

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2 years ago

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2 years ago

Divide n by 5 then add 6

algol [13]

Answer:

n+30/5

Step-by-step explanation:

Simplify n/5

n/5+6

Rewrite the whole as an equivalent fraction

2.1 Add an integer to a fraction

Rewrite the whole as a fraction using 5 as the denominator: 6= 6/1=6×5/5

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3 years ago

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3 years ago

Calculate the sum of the infinite series 98+84+72+432/7+...

bogdanovich [222]

ANSWER

$S_\infty= 686$

EXPLANATION

The given infinite series is

$98 + 84 + 72 + \frac{432}{7} + ...$

The sum to infinity of this series is given by the formula,

$S_\infty= \frac{a_1}{1 - r}$

where the first term of this infinite geometric series is

$a_1 = 98$

and the common ratio is
$r = \frac{a_2}{a_1}$

$r = \frac{72}{98} = \frac{6}{7}$

We substitute these values to obtain,

$S_\infty= \frac{98}{1 - \frac{6}{7} }$

We simplify the denominator to get,

$S_\infty= \frac{98}{\frac{1}{7} }$

This simplifies to

$S_\infty= 98 \times 7 = 686$

6 0

2 years ago

Read 2 more answers