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o-na [289]
3 years ago
8

Please help me understand

Mathematics
1 answer:
Olin [163]3 years ago
6 0

Answer:

2

Step-by-step explanation:

The scaled factor has to be 2 because 4*2=8. You can check 2 is the correct answer by doing 8/2, which is 4. The scaled factor has to be proportional so if one side of ABC was 2 but the same side on ABC prime or A’B’C’ was 10 it would not be proportional, not a scaled factor. Because 2*10 is 5, not 8. But it does not give any other side lengths so it is 4.

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What are the coordinates of point A?​
Ratling [72]

Answer:

  (d)  (7, -5)

Step-by-step explanation:

The x-coordinate is listed first in an ordered pair. It is found on the horizontal scale. The point is on the grid line halfway between 6 and 8, so is presumed to have an x-coordinate of 7.

The y-coordinate is listed second in an ordered pair. It is found on the vertical scale. The point is on the grid line halfway between -4 and -6, so is presumed to have a y-coordinate of -5.

The coordinates of point A are (x, y) = (7, -5).

__

<em>Additional comment</em>

As in the case here, you will often run across graphs that don't have markings on every grid line You are expected to be able to figure out the value of a grid line based on the spacing of the marked lines.

It is a good idea to get familiar with reading coordinates of a point on a graph, as you will be doing it a lot.

4 0
2 years ago
Write two equivalent fractions for 10 to 3
saw5 [17]
20/6 because 20 x 3 = 6 x 10 = 60. 309 is equivalent to 10/3 because 30 x 3 = 9 x 10 = 90.
40/12 is equivalent to 10/3 because 40 x 3 = 12 x 10 = 120.
7 0
3 years ago
What is the point-slope form of the equation for the line with a slope of 6/19 that passes through the point (−1,75)?
Umnica [9.8K]

Answer:

The answer is

<h2>y =  \frac{6}{19} x +  \frac{1431}{19}</h2>

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (−1,75) and slope 6/19 is

y - 75 =  \frac{6}{19} (x + 1) \\ y - 75 =  \frac{6}{19} x +  \frac{6}{19}  \\ y =  \frac{6}{19} x +  \frac{6}{19}  + 75

We have the final answer as

y =  \frac{6}{19} x +  \frac{1431}{19}

Hope this helps you

5 0
3 years ago
What does the ratio of water and flour 10:4.5 mean?
tino4ka555 [31]
You're mixing water and flour, following the rule that for each 4.5 cup of flour you add 10 cups of water.

Note that 10:4.5 is equivalent to 20/9.
4 0
4 years ago
The equation of the line is of the form y=mx<br><br>What is the value of m?
Alecsey [184]

Answer: 4

Step-by-step explanation: because the equation is y=4x

7 0
3 years ago
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