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3 years ago

What is 0.88888888 as a fraction

Mathematics

1 answer:

Oksanka [162]3 years ago

4 0

Answer:

If you are trying to do repeating, 88888888/99999999 or 8/9

If you are not trying to do repeating: 88888888/100000000

Step-by-step explanation:

When Doing repeating decimals, you have to do number of nines by the number of digits in the denominator.

When doing non repeating, it has to be over a power of ten. To determine the power, it has to be the number of digits

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2 years ago

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Tanya [424]

Answer:

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3 years ago

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Find the 6th term of the arithmetic sequence X – 9, -X – 11, -3.3 – 13, ...

MrMuchimi

Answer:

$-13x-23$

Step-by-step explanation:

Given sequence: $x-9, -x-11, -3x-13$

Therefore,

$a_1=x-9$
$a_2=-x-11$
$a_3=-3x-13$

General form of an arithmetic sequence: $a_n=a+(n-1)d$

(where a is the first term and d is the common difference)

To find the common difference, subtract a term from the next term:

$\begin{aligned}d & =a_2-a_1\\ & =(-x-11)-(x-9)\\ & = -x-11-x+9\\ & = -2x-2\end{aligned}$

Therefore,

$a_n & =(x-9)+(n-1)(-2x-2)$

To find the 6th term, input n = 6 into the equation:

$\begin{aligned}\implies a_6 & =(x-9)+(6-1)(-2x-2)\\ & = (x-9)+7(-2x-2)\\ & = x-9-14x-14\\ & = -13x-23\end{aligned}$

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2 years ago

What is the interval notation for the compound inequality? x≤−5 or x>4

Hoochie [10]

Answer:

$(-\infty, -5] \cup (4,\infty)$

Step-by-step explanation:

The symbol $\cup$ is set notation for UNION--put two sets together into one set.

The first part of the interval notation describes x less than or equal to -5 -- notice the bracket symbol after -5, meaning include -5.

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2 years ago

Graph the line.<br> y + 4x=8

const2013 [10]

Y-Intercept =(−8)
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Then rise 4 and run 1. Plot the point (1,−4)
Then again "rise 4" and then "run" 1. Plot the point (2,0)

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3 years ago

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