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2 years ago

15

Thomas is making a square frame for his painting. He is using 4 pieces of wood that are each 1.5 feet long. How much wood will h

e use to make the frame?

1 answer:

Lena [83]2 years ago

4 0

About 6 feet of wood

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In a sample of n = 6 scores, 5 of the scores are each above the mean by one point. Where is the 6th score located relative to th

den301095 [7]

The mean of a dataset is the sum of all data elements divided by the count of the elements.

The location of the 6th score relative to the mean is 5 points below the mean

Let:

$\bar x \to$ <em> Mean</em>

$a \to$ <em> 5 scores</em>

$b \to$ <em> 6th scores</em>

Given that:

$n = 6$

The 5 scores that are 1 above the mean implies that:

$a = \bar x + 1$

The mean of a dataset is calculated using:

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

So, we have:

$\bar x =\frac{5a + b}{6}$

$\bar x =\frac{5(\bar x + 1) + b}{6}$

Open brackets

$\bar x =\frac{5\bar x + 5 + b}{6}$

Multiply both sides by 6

$6\bar x =5\bar x + 5 + b$

Make b the subject

$b = 6\bar x -5\bar x - 5$

$b = \bar x - 5$

This means that the 6th score is 5 points below the mean

Read more about mean at:

brainly.com/question/17060266

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2 years ago

What is the completely factored form of of this polynomial 81x^4 - 16y^4

Tasya [4]

Step-by-step explanation:

81x⁴ - 16y⁴

(9x²)² - (4y²)²

(9x² + 4y²)(9x² - 4y²)

(9x² + 4y²)(3x + 2y)(3x - 2y)

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Complete function tables part 2<br><br><br>please help i will mark as brainlyst<br>

Vlad1618 [11]

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2

4

6

1 = 1/2(0) + 1

2 = 1/2(2) + 1

3 = 1/2(4) + 1

4 = 1/2(6) + 1

hope this helps!

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2 years ago

Which is the same as multiplying a number by two?

Pachacha [2.7K]

C adding a number to itself

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Which is the best estimate for the percent equivalent of 7/15

zzz [600]

An estimate for the percent equivalent of 7/15 is 46% i think

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