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Naily [24]
3 years ago
8

Q #7 please solve the equation

Mathematics
1 answer:
pishuonlain [190]3 years ago
8 0
The relation between a and s is given to be:

a = 640s

where,

a = number of acres
s = number of square miles

We are to find the number of acres for 7.5 square miles.

This means, s = 7.5

Using the value in the formula, we get:

a = 640 x 7.5 = 4800 acres

So the answer to this question is option B
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Graph the image of this quadrilateral after a dilation with a scale factor of 4 centered at the origin
Brut [27]

Answer: The image is attached.

Step-by-step explanation:

A Dilation is defined as  a transformation in which the image and the pre-image have the same shape, but their sizes are different.

When the scale factor is greater than 1, the image obtained after the  dilation is greater than the pre-image and it is an "Enlargement".

When the scale factor is is between 0 and 1,  the image obtained after the  dilation is smaller than the pre-image and it is an "Reduction".

In this case we know that the scale factor is:

scale\ factor=4

Since:

4>1

It is an Enlargement.

You can identify that the vertices of the pre-image shown in the figure, are:

(-2,1)\\\\(-1,2)\\\\(0,0)\\\\(-1,-2)

So you need to multiply the coordinates of those vertices by 4 in order to get the coordinates of the image;

((-2)(4),1(4))=(-8,4)\\\\((-1)(4),(2)(4))=(-4,8)\\\\((0)(4),(0)(4)=(0,0)\\\\((-1)(4),(-2)(4))=(-4,-8)

Now you can draw it (The image is attached).

8 0
3 years ago
I NEED GOOD GRADES PLEASE HELP
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If my math is right, not even a full day since it’s 2 2/3 and they use 8
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3 years ago
Which of the following statements is true?
gladu [14]

Answer:

C

Step-by-step explanation:

The answer is C.

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2 years ago
Please help me I <br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%20%20%7By%7D%5E%7B2%7D%20%20%2B%204y%20-%204"
Ivenika [448]

Answer:

{x}^{2}  -  {y}^{2}  + 4y - 4 \\  \\  {x}^{2}  - ( {y}^{2} .2.y.y +  {2}^{2} ) \\  \\  {x}^{2}  - (y - 2) {}^{2}  \\  \\ (x + y - 2)(x - y + 2)

4 0
3 years ago
Read 2 more answers
Please help I cant fail this math test thank you I appreciate it
Marta_Voda [28]

Answer:

d

Step-by-step explanation:

<33

4 0
3 years ago
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