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aalyn [17]
3 years ago
8

A school principal is trying to decide how long the breaks should be between periods. He plans to time how long it takes several

students to get from one classroom to another. Name a tool he could use to collect the data. ​
Mathematics
1 answer:
Andreyy893 years ago
6 0

he could use a bar graph to plot data

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Does (–2, 0) make the equation y = x true?
WINSTONCH [101]
No. y=x would mean it would either be (-2,-2) or (0,0). basically they have to be the same.
3 0
3 years ago
The data show the list and selling prices for several expensive homes. Find the regression​ equation, letting the first variable
asambeis [7]

Answer:

The best predicted selling price of a home having a list price of ​$22 million is $20.52 million.

Step-by-step explanation:

The missing data is:

List price (<em>x</em>) (millions of $)  

(1) 1.6 (2) 4.2 (3) 2.1 (4) 1.6 (5) 2.3 (6) 4  

Selling price (<em>y</em>) (millions of $)

(1) 2 (2) 4.6 (3) 1.8 (4) 1.9 (5) 2.4 (6) 3.6

Use Excel to perform the regression analysis.

The significance level is, <em>α</em> = 0.05.

The regression output is attached below.

The regression equation is:

\hat y=0.28+0.92x

The value of <em>t</em>-statistic is:

<em>t</em> = 0.676.

The <em>p</em>-value is:

<em>p</em>-value = 0.536

Compute the predicted selling price of a home having a list price of ​$22 million as follows:

\hat y=0.28+0.92x

  =0.28+0.92\times 22\\\\=0.28+20.24\\\\=20.52\ \text{million}

Thus, the best predicted selling price of a home having a list price of ​$22 million is $20.52 million.

8 0
3 years ago
The diameter of a circle is 8 ft. Find its area in terms of pi
WITCHER [35]

Answer:

16π

Step-by-step explanation:

Area = πr²

r - radius

r = d/2 = 8/2 =4

Area = 4²π = 16π

3 0
4 years ago
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Last one! I just need to know what the slope of the line in this graph is, ty!
azamat

The slope is 4/6 because its going up by 4 over by 6 .hope this helps

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3 years ago
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What is the Inverse function of F(x)=3x²?
mr_godi [17]

Answer:

f⁻¹(x) = x+2 / 3

Step-by-step explanation:

i dont have one. i just did it.

8 0
3 years ago
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