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1 year ago

35 POINTS FOR ONE QUESTION!!!!

Mathematics

1 answer:

Virty [35]1 year ago

5 0

Answer:

Step-by-step explanation:

If a shape is scaled by a certain scale factor then :

<u><em>the area of the new shape</em></u> = (<em>the scale factor</em>) times (<em>the area of the original object</em>)

………………………

the new recreation complex was created by enlarging the old community soccer field by a scale factor of 9

Then

The area of the new recreation complex = 9² × 600 = 81×600 = 48 600 yd²

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The screen of Breonna‘s new phone is 2.85 centimeters long. What mixed number represents the length of the phone screen?

tatyana61 [14]

19/20 centimeters long

6 0

3 years ago

find the consecutive even integers such that three times the larger number is 30 more than the smaller one. help :')

Minchanka [31]

Answer:

12 and 14

Step-by-step explanation:

Let the even integers be x and x+2

three times the larger number is expressed as 3(x+2)

30 more than the smaller one is x + 30

Equating both expressions

3(x+2) = x +30

Find x

3x+6 = x+30

3x-x = 30-6

2x = 24

x = 12

The second integer is 12+2 = 14

Hence the required integers are 12 and 14

4 0

3 years ago

Go sub to Aliendog10me on you tube

timurjin [86]

Answer:

I subbed you're welcome

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3 years ago

The null hypothesis for an ANOVA is that all treatments/samples come from populations with the same mean. The alternative hypoth

LenKa [72]

Answer:

Alternative hypothesis: "AT LEAST ONE" of the population means is different from the others

Step-by-step explanation:

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"

If we assume that we have n groups and we want to check if the population means are equal, th best way to check this it's with an ANOVA test.

The hypothesis for this case are:

Null hypothesis: $\mu_{1}=\mu_{2}=\dots =\mu_{n}$

Or in words:

Null hypothesis: All treatments/samples come from populations with the same mean

Alternative hypothesis: Not all the means are equal $\mu_{i}\neq \mu_{j}, i,j=1.2,\dots ,n$

Or we can say:

Alternative hypothesis: "AT LEAST ONE" of the population means is different from the others

8 0

3 years ago

1. Which other expression has the same value as (-14) - 8?

ludmilkaskok [199]

Answer: −22

Step-by-step explanation:

=−14−8

=−14+−8

=−22

6 0

2 years ago