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kirill115 [55]
4 years ago
5

A triangle with vertices at A(20, –30), B(10, –15), and C(5, –20) has been dilated with a center of dilation at the origin. The

image of B, has the coordinates (2, –3). What is the scale factor of the dilation?
1/10
1/5
5
10
Mathematics
2 answers:
WARRIOR [948]4 years ago
6 0

Answer:

The correct answer is 5.

Step-by-step explanation:

This is because if you divide 10 by 2 and -15 by 3

you get 5. Now to double check, you can do 10/5 and -15/5

This will give you 2, -3, which is the coordinates.


Hope this helps!

dusya [7]4 years ago
5 0

Answer:

5

Step-by-step explanation:


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torisob [31]

The type of numbers, rational and irrational from the numbers Keisha writes are;

a. Rational numbers; -9, 3.0, 2, and 2.42

b. Irrational numbers; √8

<h3>What is the difference between rational and irrational numbers?</h3>

Rational numbers are numbers are numbers that can be expressed as a ratio of two whole numbers P/Q, in which, <em>Q </em>≠ 0

Irrational numbers are those that cannot be expressed as a fraction P/Q

The given numbers are;

-9, √8, 3.0, 2, 2.42

  • -9 = -9/1

  • √8 = 2•√2 (√2 cannot be expressed as a fraction of two whole numbers)

  • 3.0 = 3/1

  • 2 = 2/1

  • 2.42 = \frac{242}{100} =  2 \frac{21}{50}

a. The rational numbers are therefore;

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b. The irrational number is; √8

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4 years ago
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A research center conducted a telephone survey of 2,000 adults to learn about the major economic concerns for the future. The su
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Answer:

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Step-by-step explanation:

Find the point estimate by dividing the number of respondents that thought it was a major economic concern by the total number of people in the survey:

1,620/2,000

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6 0
3 years ago
Previ
denpristay [2]

The length of the line segment with endpoints at (0, 3) and  (-6, -5) is 10 units

<h3>What is an equation?</h3>

An equation shows the relationship between two or more numbers and variables.

The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is:

AB=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

The line segment have endpoints at (0, 3) and  (-6, -5). Hence:

Length = √[(-5-3)² + (-6 - 0)²] = √(8² + 6²) = √100 = 10

The length of the line segment is 10 units

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-An internatinal call costs $9.35 for 32 minutes. What is the cost per minute?​
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