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3 years ago

8

Which of the following is the solution to | 17 x| > -17?

2 answers:

I am Lyosha [343]3 years ago

6 0

All values are solutions

andreyandreev [35.5K]3 years ago

5 0

All values are solution

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What is the answer to 6,007,200 in exspanded form

Rzqust [24]

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4 years ago

Calculate the arithmetic sequence in which a9=17 and the common difference is d=-2.1

jek_recluse [69]

Answer:

$S_{31}=71.3$

Step-by-step explanation:

The nth term of an arithmetic sequence is given by the formula,

$U_n=a_1+(n-1)d$

We were given that the 9th term is $17$ .

$\Rightarrow 17=a_1+(9-1)(-2.1)$

$\Rightarrow 17=a_1+(8)\times(-2.1)$

$\Rightarrow 17=a_1-\frac{84}{5}$

$\Rightarrow 17+\frac{84}{5}=a_1$

$\Rightarrow a_1=\frac{169}{5}$

The sum of the first n-terms is given by the formula,

$S_n=\frac{n}{2}(2a_1+(n-1)d)$

To find $S_{31}$ , we substitute $n=31$ , $a_1=\frac{169}{5}$ and $d=-2.1$ .

$\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(31-1)(-2.1))$

$\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(30)(-2.1))$

$\Rightarrow S_{31}=\frac{31}{2}(\frac{23}{5})$

$\Rightarrow S_{31}=\frac{713}{10}$

$\Rightarrow S_{31}=71.3$

The correct answer is D

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3 years ago

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The annual expenditure of the US federal government is approximately 444 trillion dollars.

Alexeev081 [22]

Answer:

4 x 10^8 metres.

[0.0001 x (4 x 10^12)

= 4 x 10 ^8

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3 years ago

If y=3 when x=9 find x when y=1<br> & if y=2 when x=0.5 find y when x=3

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I got -19/655 and i know for sure this isnt the correct answer.

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4 years ago

In a survey of 3100 people who owned a certain type of car, 1240 said they would buy that type of car again. What percent of th

Natali5045456 [20]

Answer:

40% of people would buy the car again.

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Step-by-step explanation:

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3 years ago