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3 years ago

25 points

Mathematics

1 answer:

ira [324]3 years ago

5 0

Answer:

Part A

The rotation of the point (x, y) 180° about the origin gives the point (-x, -y)

Therefore, we have the points, ΔLMN, L(1, 1), and M(2, 2), and N(3, 3)

The coordinates of the vertices of the image, ΔL'M'N' are L'(-1, -1), and M'(-2, -2), and N'(-3, -3)

Please find attached the graph of triangle ΔLMN and ΔL'M'N'

Part B

The lines drawn through L and L' and through M and M' are colinear

Part C

A line is defined by two points, such as L and M. Rotation of a line through 180° about the origin will give an image location on the same path as the extension of the original line.

The third point, N, however, defines a plane, and the rotation of a plane by 180° will give an image which is turned upside down with regards to the preimage

Therefore, a trough in the preimage becomes a peak in the image and the lines drawn through N and N' crosses the colinear lines drawn throgh M and M' and L and L'

Step-by-step explanation:

if this helps can i have brainliest please

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algol13

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Step-by-step explanation:

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4 years ago

Read 2 more answers

Tanisha and Rebecca are signing up for a new cell phone plan to only charge for the number of minutes and everything else includ

xeze [42]

Answer:

see the explanation in the procedure

Step-by-step explanation:

The complete question is

Tanisha and Rebecca are signing up for the new cellphone plans that only charge for the number of minutes and everything else is included in a monthly fee. Their plans are as follows:

Tanisha s Plan: $0.15 per minute used talking and a $25 monthly fee

Rebecca s Plan: $0.10 per minute used talking and a $18.50 monthly fee

After how many minutes will the two plans charge the same amount?

Let

x ----> the number of minutes

y ---> the total charge in dollars

we know that

Tanisha s Plan

$y=0.15x+25$ -----> equation A

Rebecca s Plan

$y=0.10x+18.50$ -----> equation B

To find out after how many minutes will the two plans charge the same amount, equate equation A and equation B

$0.15x+25=0.10x+18.50$

solve for x

$0.15x-0.10x=18.50-25$

$0.05x=-6.5$

$x=-130\ min$

therefore

They will never pay the same amount , because the time cannot be a negative number.

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4 years ago

Please help I will give brainliest.

Kruka [31]

Answer:

Step-by-step explanation:

Construct a perpendicular bisector of segment AB.

Perpendicular bisector is a line that divides the line into two equal halves forming 90° at the intersection point.

So, points A and B will be at the same distance from the intersection point.

If the constructed line (perpendicular bisector) is the reflection axis, then point B will be the refection point of A.

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2 years ago

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bixtya [17]

For this case we have the following original function:
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Vertical displacements:
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To graph f (x) - k, move the graph k units down.
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