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3 years ago

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Mathematics

1 answer:

mariarad [96]3 years ago

6 0

Answer:

s+s+s and 3s

Step-by-step explanation:

imagine S as a number. lets say s is 1. they boyght 3 starts so it has to be 3. Option 1 and 3 has a sum of 3. Option 2 has the tital of 1 because 1³=1 and option 4 is 4.

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Unit sales for new product ABC have varied in the first seven months of this year as follows: Month Jan Feb Mar Apr May Jun Jul

Alecsey [184]

Answer:

$\sigma = 121.53$

Step-by-step explanation:

Required

The population standard deviation

First, calculate the population mean

$\mu = \frac{\sum x}{n}$

This gives:

$\mu = \frac{148+ 329+ 491 +167+ 228+285+ 441}{7}$

$\mu = \frac{2089}{7}$

$\mu = 298.43$

The population standard deviation is:

$\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}$

So, we have:

$\sigma = \sqrt{\frac{(148 - 298.43)^2 + ..........+ (441- 298.43)^2}{7}}$

$\sigma = \sqrt{\frac{103387.7143}{7}}$

$\sigma = \sqrt{14769.6734714}$

$\sigma = 121.53$

8 0

3 years ago

Carmen uses 4 centimeters of tape for every present she wraps. How many presents did

IrinaVladis [17]

Answer:

Step-by-step explanation:

4 centimeters for each present and she used 48 centimeters of tape, so u would take 48 divided by 4 and get 12

5 0

4 years ago

Mariamaria can shovel snow from her driveway in 4040 minutes. tomtom can do the same job in 3535 minutes. how long would it take

Assoli18 [71]

Maria does 1/40th of the driveway per minute. Tom does 1/35th. Together, they do:
1/40+1/35=75/1400=3/56
1/3/56=56/3, or 18&2/3 minutes working together
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8 0

4 years ago

A series of transformations maps EFGH onto its image. Determine the series of transformations involving a reflection, translatio

Annette [7]

Answer:

See below

Step-by-step explanation:

Firstly, we'll dilate EFGH by any scale factor.

<u><em>Let's find the scale factor first.</em></u>

=> Scale Factor = $\frac{Side \ of \ dilated \ figure}{Side \ of \ original \ figure}$

=> Scale Factor = $\frac{6}{4}$

=> Scale Factor = 1.5

1) Dilate the figure by a scale factor of 1.5

2) Reflect it across the origin

3) Translate (Move) 5 units down and then 10 units left.

These transformations will map EFGH onto its image.

5 0

3 years ago

Each of the 25 students in Mr. McDonald’s class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonal

Anna [14]

The answer is $6,000.

5 0

4 years ago