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RSB [31]
3 years ago
13

A number is chosen at random from 1 to 50. Find the probability of selecting numbers greater than 18.

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0

Answer:

32/50 (64%)

Step-by-step explanation:

50 - 18 = 32

32/50 = 0.64

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marusya05 [52]

Answer:

i)

Find the attached

ii)

The mathematical model that best fits the data is;

The quadratic model

Step-by-step explanation:

i)

A scatter-plot can easily be constructed using applications such as Ms. Excel.

In Ms. Excel, enter the data into any two adjacent columns. Next, highlight the data, then click the insert ribbon and select the scatter-plot option.

Excel returns a scatter-plot chart as shown in the attachment below.

ii)

After obtaining the scatter-plot, we shall need to add a trend line in order to determine the mathematical model that best fits the data given.

Click anywhere inside the chart, then select the design tab under chart tools. Click on the Add Chart element in the upper left corner of the excel workbook and select more trend-line options. This feature will enable us to fit any trend-line to our data.

Select any trend line option ensuring you check the boxes; Display Equation on chart and Display R-squared value on chart.

Find the attached for the various trend-lines fitted.

The mathematical model that best fits the data is;

The quadratic model

Since it has the largest R-squared value of 1.00

4 0
2 years ago
Show that each system has no solution<br>y=x+1<br>-x+y=3
Phoenix [80]
Y=x+1
-x+y=3

-x+x+1=3
1=3

5 0
3 years ago
I’ll mark you if it’s right.
Kamila [148]

Answer:

(-3, -1)

If you rotate 180, you just flip the signs.

6 0
3 years ago
What is the result of subtracting a number greater than -3 but less than -2 from a number greater than 1 and less than 6
leva [86]

Answer:

2/2 - 4 = -3

Step-by-step explanation:

I don't know really but, hopefully this helps. Are there any answer choices?

5 0
2 years ago
Which term in this expression is a constant?
solniwko [45]

Answer:

B

Step-by-step explanation:

i jst did it

4 0
3 years ago
Read 2 more answers
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