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andrew11 [14]
2 years ago
15

How does the slope formula help you classify figures

Mathematics
1 answer:
Tomtit [17]2 years ago
8 0

Using the distance formula, you can determine the lengths of the sides of the shape.  This will help determine if triangles are equilateral, isosceles or scalene; or if quadrilaterals are squares, rectangles, rhombi, or isosceles trapezoids; or if other polygons are regular polygons.  The slope formula will tell help you determine if two sides are parallel.  In a quadrilateral, this will help you determine if the figure is a parallelogram or a trapezoid.


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The mayor of a town has proposed a plan for the annexation of an adjoining community. A political study took a sample of 1600 vo
Arturiano [62]

Answer:

Test statistic = -2.44

There is enough evidence to support the strategist's claim.

Step-by-step explanation:

H0 : p = 0.41

H1 : p < 0.41

pˆ = 0.38

Test statistic :

z=pˆ−p/√p(1−p)/n

Z = (0.38 - 0.41) / √(0.41(1 - 0.41) / 1600

Z = - 0.03 / √0.0001511875

Z = - 0.03 / 0.0122958

Z = - 2.4399

Test statistic = -2.44

The Pvalue :

P(Z < -2.44) = 0.0073436

α - level = 0.02

If Pvalue < α ; Reject H0

0.0073436 < 0.02 ; We reject H0

Since Pvalue < α ; Hence, There is enough evidence to support the strategist's claim.

8 0
2 years ago
The half-life of a certain radioactive material is 78 hours. An initial amount of the material has a mass of 790 kg.. Write an e
adoni [48]
<span> half life i= 78 hours 
 amount after 78 hours is 395 kg: 
395 = 790e^(k*78) 

Dividing by 790 and taking natural log
ln (395/790) = (k*78) 
-0.6931 = 78k 
-0.00888 = k  

lets calculate  how much is left after 18 hours: 
Amount(18)
= 790e^(-0.00888*18) 
Amount = 673.301 kg
hope this helps</span>
4 0
2 years ago
Read 2 more answers
How do you write 5.3 * 104 in standard form?
mixer [17]
Multiply 5.3 by 104.

Answer: 551.2
3 0
2 years ago
This bar graph shows the money earned from the sale of skateboards one Saturday at four stores. What can you tell from the infor
-BARSIC- [3]

Answer:

its D <3

Step-by-step explanation:

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6 0
2 years ago
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jose purchased a pair of shoes for $55 , new york has a sales tax of 6%. How much is the final price with tax ?
Slav-nsk [51]

Answer:

$58.30

Step-by-step explanation:

4 0
3 years ago
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