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Vilka [71]
3 years ago
5

A. What is the center of dilation? b. What is the scale factor?

Mathematics
1 answer:
Ludmilka [50]3 years ago
7 0
A. The center of dilation is (-2,-1) because you can draw a straight line from B to B’ as well as C to C’.

b. The scale factor is 1.5 because using the C and C’ length ratio, where 6:4 is 6/4 => 3/2 aka 1.5.
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a ship leaves port on a bearing of 44.0 degrees, and travels 11.4 mi. the ship turns east and travels 6.2 mi. How far is the shi
Rudik [331]

Based on the information provided, \overrightarrow{r} = at a bearing angle of = 59.88° .

We are requested to calculate the overall displacement of the ship, both in magnitude and direction, once it departs the harbor under the stated parameters. First, let's define a bearing.

<h3>What is bearing in the context given above?</h3>

Angles are generally measured anticlockwise from the positive x-axis, whereas bearing angles are evaluated clockwise from the positive y-axis. A bearing is NOT a standard angle measuring tool.

Therefore, a bearing of 44.0° indicates that this is an angle 90.0° - 44.0° = 46°. This is the angle to be used in the calculations.

We're given that the first displacement is 11.4° at an angle of 46° (which was computed earlier).

Step 1  - Split the above into components

x1 = 11.4 Cos 46°

= 7.92m

y1 = 11.4Sin 46.0°

= 11.4 * 0.71933980033

= 8.2m

The second displacement is a simple 6.2mi due east, that is, the positive

x-direction. The components are thus:

Δx = x1 + x2

= 7.92 + 6.2

= 14.12mi

Δy = 1 + y2

= 8.2 + 0

= 8.2

r = √(x total)² + (y total)²

=√[(14.21)²+(8.2)²]

= √(201.9241 +67.24)

= √269.1641

= 16.4mi

The direction of the displacement vector is given by:

tan Ф = (Δy)/(Δx)

= arctan (8.2/14.12)

= arctan (0.5807365439)

= 30.12°

Recall that we were asked for the bearing angle. The bearing angle is what we get when we subtract 30.12° from 90°.

That is:
= 90 - 30.12

= 59.88°

Learn more about bearing angle:
brainly.com/question/22719608
#SPJ1

7 0
2 years ago
Which of the following can be classified as Discrete and Quantitative data. The number of students in your school. The different
WITCHER [35]

Answer:

a) The number of students in your school.      

Step-by-step explanation:

Quantitative and Qualitative:

  • The data that can be expressed with the help of numerical are know as quantitative variable.
  • Qualitative variable is the non parametric variable and numerical does not describe the data

Discrete and Continuous data:

  • Discrete data are expressed in whole number and cannot take all the values within an interval.
  • Continuous variable can be expressed in decimals and can take any value within an interval.

a) The number of students in your school.

Since whole numbers are used to express number of children it is a discrete and continuous data.

b) The different colors of the eyes of your classmates.

These are qualitative data and numerical are not used to express them.

c) The height of all the people in your neighborhood.

These are continuous data as height is measured and can be expressed in decimals.

d) The acceleration of your car as you drive to school.

These are continuous data as acceleration is measured and can be expressed in decimals.

3 0
3 years ago
Explain how to find the constant of proportionality for the ratio of robins to cardinals.
mash [69]

Answer:

Divide the number of robins by the number of cardinals for each pair of values. The ratios are the same and are a constant of proportionality of 3.

Step-by-step explanation: I took the test on Edgenuity.

4 0
3 years ago
PLEASE HELP QUICKLY<br> What is the value of y
Sidana [21]

Answer:

y= 8

Step-by-step explanation:

In a Triangle we know,

W+Y+X=180 degree

then,

(180-52)+(4y-4)+3y=180

or, 128+4y-4+3y= 180

or, 7y= 180- 124

or, y= 56/7

or, y= 8

hope you got it.

4 0
3 years ago
samantha is savung up to bit a car it costs 3000 dollars she has 775 saved up and makes 150 a month how many more monsths will s
zzz [600]
905 or 2045 because I think those are the right answer
7 0
3 years ago
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