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frosja888 [35]
3 years ago
11

Which of these is an example of typing an average rate of 42 words per minute

Mathematics
1 answer:
ella [17]3 years ago
5 0

Answer:28 words in 3/2 of a minute

Step-by-step explanation:

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In the right -angled tringles began the ABC in the ED :8cm ,and DC :10cm then the length of the air
fgiga [73]
ED:8cm,DC:10 so the air is HD:18
7 0
3 years ago
Enter the equation in slope-intercept form. Then graph the line described by the equation. -4x - 3y = 9
Alexus [3.1K]

Answer:

Step-by-step explanation:

-3y = 4x +9

y= -3/4x -3

5 0
3 years ago
A triangle is dilated by a scale factor of 1/5 and then rotated 90 degree clockwise about the origin. Why is the image similar t
yan [13]
<u><em>Answers:</em></u>
The corresponding angles of the triangles are congruent
The image is a reduction of the pre-image
Neither the dilation nor the rotation change the shape of the triangle

<u><em>Explanation:</em></u>
<u>For shapes to be similar:</u>
1- there should be a ratio between the sides
2- angles in first shape should be congruent to angles in second shape

Now, a scale factor of 0.2 means that the sides of the image are 0.2 of the length of the original shape. However, angles are not changes

<u>Let's check the choices:</u>
<u>1- </u><span><u>The corresponding sides of the triangles are congruent:</u>
This option is incorrect as dilation changes the lengths of the sides

<u>2- </u></span><span><u>The corresponding angles of the triangles are congruent:</u>
This option is correct as neither dilation nor rotation alters the measures of the angles

<u>3- </u></span><span><u>The corresponding sides of the image are 5 times as long as those of the pre-image:</u>
This option is incorrect as the sides of the image are only 0.2 times as long as those of the pre-image

<u>4- </u></span><span><u>The image is a reduction of the pre-image:</u>
This option is correct as the sides of the image are 0.2 times those of the pre-image which means that the shape is reduced

<u>5- </u></span><span><u>Neither the dilation nor the rotation change the shape of the triangle:</u>
This option is correct as both dilation and rotation are rigid transformations that do not alter the shape of the triangle (a triangle remains a triangle only with different side lengths)

<u>6- </u></span><u>The rotation reduces the size of the triangle:</u>
This option is incorrect as rotation does not alter the size of the shape. It only changes its position

Hope this helps :)

3 0
3 years ago
Read 2 more answers
A computer store buys a computer system at a cost of $370.80. Then selling price was first at $618, but then the store advertise
Charra [1.4K]

Answer:

The answer is 494.40$

Step-by-step explanation:

618*80=49440

49440/100=494.40

3 0
3 years ago
Solve for x.<br> please helppp! it’s the end of the grading period
Lynna [10]

Answer:

x=4

Step-by-step explanation:

16 = 4x

16/4 = x

4 = x

6 0
3 years ago
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