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3 years ago

Which of the following inequalities has the graphed solution below?

Mathematics

1 answer:

alexandr1967 [171]3 years ago

5 0

I think either x + 1 >_0 or x - 1 >_0, but I personally would choose x + 1 >_0

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The following data give the prices of seven textbooks randomly selected from a university bookstore.

swat32

Answer:

a) Mean = $121

Sum of deviations = $0

b) Standard deviation = 41.19

Variance = 1696.67

Range = $120

Step-by-step explanation:

We are given the following data:

$91 , $176 , $108 , $115 , $56 , $157 , $144

a) Mean and sum of deviations

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{847}{7} = 121$

Sum of deviations =

-30 + 55 - 13 - 6 - 65 + 36 + 23 = 0

The sum of deviations is zero dollars.

b) range, variance, and standard deviation

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

Sum of square of differences =

900 + 3025 + 169 + 36 + 4225 + 1296 + 529 = 10180

$\sigma = \sqrt{\dfrac{10180}{6}} = 41.19\\\\\sigma^2 = 1696.67$

Sorted data: 56, 91, 108, 115, 144, 157, 176

Range = Maximum - Minimum

Range = 176 - 56 = 120

5 0

3 years ago

Create a budget that will allow you to save at least $100 by the end of October.

insens350 [35]

According to the updated budget, the net income should be at least $2100.

A budget is an estimated strategy for a certain timeframe, mostly one year. Additionally, projected material amounts, expenditures, liabilities, holdings, responsibilities, and working capital may be included.

The following list explains why the figures shown above are accurate:

The factors for the costs in the previous budget are;

Net income =$1,850.00

Cost of rent =$600

Gas, vehicle payment, and insurance together = $475.

Cost of phone, online world, and utility companies = $230.

Cost of grocery stores= $300

Cost of amusement= $50

Cost of homeowners insurance = $20.

$75 has been set aside for recreational expenditures.

Net monthly savings = $100.

Modifications to the spending plan:

$50 is the allotted sum for a computer system.

Monthly net savings = $300

∴Savings increases= $300-$100=$200

Previous net income+ cost of computer system+ 200(extra savings than previous)

= $(1850+50+200)

=$2100

So,Net earnings = $2,100

Learn more about the budget plan:

brainly.com/question/22057981?referrer=searchResults

#SPJ10

3 0

2 years ago

The distributive property can be applied to which expression to factor 12x3 – 9x2 + 4x – 3?

Kryger [21]

Answer:

3x2(4x – 3) + 1(4x – 3)

Step-by-step explanation:

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3 years ago

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Su Ling started an art project with 1 yard felt. She used 5/6 yard. How much felt does Su Ling have left?

Vadim26 [7]

Su has about 1/6 yards of felt left my dude/dudett

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4 years ago

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I GIVEEEE BRAINLILSTT

Olegator [25]

Answer:

ok can i have the brain lets know or when do i get them?

Step-by-step explanation:

1 2 3 45 67 7 8 8 90 0 - 93574756907490 +++++++ .//../2823rg778gq 10900

1000000000000000 :) great JOB u MAD IT

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3 years ago

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