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Rzqust [24]
4 years ago
10

Victoria created the scatterplot below based on the data in the table for the ages and heights of some teachers in her

Mathematics
2 answers:
givi [52]4 years ago
8 0

Answer:

it is D

She mixed up the x- and y-coordinates of the point representing teacher 3.

Step-by-step explanation:

because teacher 3 is 50,60 but insted she put 60,50

spayn [35]4 years ago
6 0

Answer:

The correct answer is Option D.

Step-by-step explanation:

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3 years ago
A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and 1. How m
Pie

Answer:

No solutions exist because the situation describes two lines that have the same slope and different y-intercepts.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to call the numbers x and y.

A number is equal to twice a smaller number plus 3.

Greater number is x, and smaller is y. So

x = 2y + 3

The same number is equal to twice the sum of the smaller number and 1.

This means that x = 2y + 1

Equaling the values for x:

2y + 3 = 2y + 1

0y = -2

y = -\frac{2}{0}

Since division by 0 does not exist, it means that there is no solution for the system.

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3 years ago
Qhat is the ratio of 6to 5​
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3 0
3 years ago
The life span of a graphing calculator manufactured by Texas Instruments has a normal distribution with a mean of 54 months and
Tcecarenko [31]

Answer:

The expected number of graphing calculators that malfunctions within 3 months and need to be replaced is 915,000.

Step-by-step explanation:

Let <em>X</em> represents the number of graphing calculator that starts malfunctioning within 36 months of the purchase and needs to be replaced by a new one.

It is provided that <em>X</em> follows a normal distribution with a mean of 54 months and a standard deviation of 8 months.

Also, using the normal model it was determined that 1.22% of graphing calculator manufactured by Texas Instruments malfunctions and needs replacement.

That is,

P (<em>X</em>) = 0.0122

Texas Instruments has sold 75 million graphing calculators world- wide.

Compute the expected number of graphing calculators that malfunctions within 3 months and need to be replaced as follows:

E (<em>X</em>) = n × P (<em>X</em>)

        = 75 × 10⁶ × 0.0122

        = 915000

Thus, the expected number of graphing calculators that malfunctions within 3 months and need to be replaced is 915,000.

3 0
3 years ago
N a recent election, Mark Benton received 780 votes for 12% of the total vote. How many people voted in the election?
Sloan [31]

Answer: Answer C

Step-by-step explanation:

12%___780 votes

100%___X= 6500 votes

(100*780)/12 = 6500

5 0
3 years ago
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