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frozen [14]
3 years ago
6

Trying to help my daughter can't figure this out.

Mathematics
1 answer:
adell [148]3 years ago
4 0

Answer:

length = 20m

width = 16m

(Anyone can correct me if I'm wrong)

Step-by-step explanation:

Firstly, I would assume that you made a unit error for the perimeter, which I would believe is meters.

With that, we can now make these statements:

Perimeter = 72m

Perimeter = 2l + 2w

therefore,

2l + 2w = 72

Since the question states the width is 4 meters less than the length, we can make this statement,

w = l - 4

We can now substitute this into the first statement we made, 2l + 2w = 72

2l + 2(l - 4) = 72

2l + 2l - 8 = 72

4l - 8 = 72

4l = 80

l = 20m

Using the second statement, w = l - 4, we can now find w,

w = 20 - 4

w = 16m

Therefore, the length is 20m and the width is 16m

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Transformation for y=-2(x-1)2 + 2
Llana [10]

Answer:

Vertex = 1,2

it is shifted 2 units up and to the right 1 unit

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Step-by-step explanation:

5 0
3 years ago
Find the median, lower quartile, and upper quartile for the set of data.
Irina-Kira [14]

Answer:

The median is 2 lower quartile is 11 and upper quartile is 6

Step-by-step explanation:

hope this helps

5 0
3 years ago
-1/4b + 1/2 = 5/6<br>Find b​
QveST [7]

Answer:

b = -4/3

Step-by-step explanation:

First, subtract the 1/2 over

-1/4b+1/2=5/6

5/6-1/2

To get a common denominator of 6, multipy 1/2 by 3

5/6-1/2(3)

5/6-3/6=2/6

-1/4b=2/6

Next, multiply by the reciprocal of -1/4, or -4

(-4)-1/4b=2/6(-4)

b=-4/3

7 0
3 years ago
Jessie draws triangle ABC on a coordinate grid. The slope of line segment AB is Jessie then transforms triangle
balu736 [363]

Answer:

1) Supports Jessie's Claim

2) Does Not Support Jessi's Claim

3) Supports Jessie's Claim

4) Does Not Support Jessi's Claim

Step-by-step explanation:

The given transformations are;

1) Rotation of 180° around the origin

For a rotation of 180° around the origin, either clockwise or anti clockwise, for a given coordinate of the preimage (x, y), the coordinate of the image is (-x, -y)

Therefore, whereby the slope of the preimage, given two points (0, 0) and (2, 2), = (2 - 0)/(2 - 0) = 1

For the image with the points (0, 0) and (-2, -2), we have;

(-2 - 0)/(-2 - 0) = 1

Therefore, the slope of the preimage and the image are equal

Therefore, supports Jessie's Claim

2) For a reflection across the line y = 2, we have

We note that the line y = 2 is parallel to the x-axis

For a reflection across the x-axis, for a preimage (x, y), we have the coordinates of the image (x, -y)

However for the reflection across the line y = 2, we have;

For a preimage, (x, y), the coordinate of the image is (x, -y+4)

Given two points, of the preimage (0, 0) and (2, 2), we have the image given as (0, 4) and (2, -2 + 4) = (2, 2);

The slope of the preimage is (2 - 0)/(2 - 0) = 1

The slope of the image is (2 - 4)/(2 - 0) = -1

The slope of the line of the preimage and the image are different

Therefore, does Not Support Jessi's Claim

3) For a translation up 1.25 units, we note that the difference in the y and x values of the coordinates of the preimage and the image will be equal when finding the slope, and therefore, the slope of the figure of the preimage and the slope of the figure of the image will be equal

Therefore, supports Jessie's Claim

4) For a reflection across the x-axis, a point on the preimage, with coordinates (x, y) will form a point on the image with coordinates (x, - y)

For a preimage with points (0, 0) and (2, 2), we have the image as (0, 0) and (2, -2)

The slope of the preimage is (2 - 0)/(2 - 0) = 1

The slope of the image is (-2 - 0)/(2 - 0) = -1

The slope of the line of the preimage and the image are different

Therefore, does Not Support Jessi's Claim

6 0
3 years ago
I need help on this question
Margaret [11]
500(.25)=125 is the answer
8 0
3 years ago
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