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ira [324]
3 years ago
8

The scatter plot shows the relationship between the number of hours spent practicing piano per week and the number of pieces of

music the student can play:
A scatter plot is shown. The x-axis is labeled hours spent practicing and the y-axis is labeled number of pieces student can play. Data points are located at 1 and 1, 1 and 5, 2 and 10, 2 and 15, 3 and 15, 3 and 25, 4 and 40, 5 and 40, 5 and 50, 6 and 55, 6 and 70, 8 and 90, 3 and 70. A circle labeled T includes all points except for 3 and 70. Point 3 and 70 is circled and labeled as R.

Part A: What is the group of points labeled T called? What is the point labeled R called? Give a possible reason for the presence of point R. (3 points)

Part B: Describe the association between the number of hours practiced each week and the number of pieces a piano student can play. (2 points)

Mathematics
1 answer:
grandymaker [24]3 years ago
3 0

Answer:

Step-by-step explanation:

Part A:  The point labeled R is called the outlier and the group of points labeled are called the nonlinear positive association.  

Part B:  When the students practiced for more hours can play more pieces.  

Please give brainliest  

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\text{Answer: }\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{5}{2}

Step-by-step explanation:

Since we have given that

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As we know the relation of area of similar figures, i.e.

\frac{\text{ Area of first decagon}}{\text{ area of second decagon}}=\frac{625}{100}=\frac{a^2}{b^2}

Now, we also know that ,

\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{a}{b}=\frac{\sqrt{625}}{\sqrt{100}}=\frac{25}{10}=\frac{5}{2}

Hence,

\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{5}{2}

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4 years ago
A car dealership has 55 cars and 11 vans. What is the ratio of cars to vans?
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6 0
3 years ago
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can we simplify this further?
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lets do this:
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