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julsineya [31]
3 years ago
10

Question 3 jane takes a survey of 100 random students at her school about their eye color. the results are shown in the chart be

low. based on the outcome of the survey, how many students can she expect to have green eyes if there are 20 students in her class
Mathematics
1 answer:
qwelly [4]3 years ago
8 0
Can i have the chart please?????
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The table below shows the heights of 6 pairs of brothers and sisters, ​labeled A through F .
scoray [572]

Answer:

The difference is <em>2 inches</em>

Step-by-step explanation:

Firstly, we identify the equation as given in the question;

y = 1.42105x - 32.2632

We need to know which of the two is the dependent variable i.e y-value and which is the independent variable x-value between the brothers' heights and the sisters' heights. To do this, we have to start with an assumption and check which of the two is for the brothers' or for the sisters,

Let's say the brothers' heights is x, we select any of the data points; (68,64)

we input this into the line of best fit equation; 64 =1.42105(68) - 32.2632 = 96.6314-32.2632=  64.3682

We can see the value on the left hand side of the equation correlates with that on the right hand side. This confirms our assumption that the brothers' heights refer to the independent variable x.

Now, let's plug the values for the 71 inches heights

y = 1.42105(71) - 32.2632 = 68.63 approximately 64

In the table, we can see that the predict sister height at that particular data point is 71 inches. The difference between the predicted height and the actual height is thus 71-69 = 2 inches  

4 0
3 years ago
Lisa's penny bank is
Bingel [31]
1200 pennies!!!!!!!!!
8 0
3 years ago
A chair marked with 1800 was sold to a customur for 1504 .Find the rate of discount allowed on the chair
mihalych1998 [28]

Answer:

16.44%

Step-by-step explanation:

3 0
2 years ago
What is the area of this trapezoid?
sasho [114]

Area of trapezoid : (Base 1 + base 2) x h x 1/2

Let's solve!

( 2+6) x 5 X1/2

= 40x1/2

=20

20 in squared is the area!

8 0
3 years ago
Read 2 more answers
3x−1−(x+3)=1 PLEASE HELP IDK HOW TO DO IT
torisob [31]

Answer:

x = 5/2

x = 2 1/2

x = 2.5

Step-by-step explanation:

3x - 1 - (x + 3) = 1

3x - 1 - x - 3 = 1

2x - 1 - 3 = 1

2x - 4 = 1

2x = 1 + 4

2x + 5

2x = 5

x = 5/2 → 2 1/2 → 2.5 ( can be written in any of these forms depending on what you need to do)

<em>Hope this helped! :)</em>

7 0
3 years ago
Read 2 more answers
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