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shtirl [24]
2 years ago
14

What is the range of this relation? ​

Mathematics
1 answer:
gayaneshka [121]2 years ago
6 0

Answer:

{- 1, 0, 4 }

Step-by-step explanation:

the range is the y- coordinates of the plotted points

the coordinates of the points are

(- 4, - 1 ) , (1, 0 ) , (1, 4 ) with y- coordinates - 1, 0, 4

then range is { - 1, 0, 4 }

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The length of a rectangle is 4 more than its width. The area of the rectangle is 21m2 . What is the measure of the width?
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The width is 3m because 3*7 is 21m^2. Also they said the length is 4 more than the width (3+4=7)
7 0
3 years ago
Find three points that belong to the graph and use them to sketch the graph of the equation: y = −3 −x
dalvyx [7]

Answer:

To find a point that belongs to the graph, you have to assume the value of one variable and compute the other one. For example, if x = 0, then y = -3 -0 = -3. Similarly:

x   y

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1    -4

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Read 2 more answers
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people
sertanlavr [38]

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond = 0.365

Step-by-step explanation:

The counts are as follows  

Age Group  No of people contacted No of refusals      Total  

18-21               88                                  8                       96

22-29              240                                  42                       282

Total              328                                  50                       378

 

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365

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