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fredd [130]
2 years ago
11

It's 4 let me explain

Mathematics
1 answer:
irakobra [83]2 years ago
3 0
Explain what!!!!!!!!’
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The point A = (7,4) is dilated from the origin by a scale factor r = 3. What are the coordinates of A' ?
fomenos

Given:

The coordinates of point A are (7,4).

It is dilated from the origin by a scale factor r = 3.

To find:

The coordinates of A'.

Solution:

If a figure is dilated from the origin by a scale factor k, then

(x,y)\to (kx,ky)

Here, the figure is dilated from the origin by a scale factor 3, so the rule of dilation is given by:

(x,y)\to (3x,3y)

Using this rule, we get

A(7,4)\to A'(3(7),3(4))

A(7,4)\to A'(21,12)

Therefore, the coordinates of point A' are (21,12).

6 0
2 years ago
What is the equation for the line?<br><br> will give BRAINLYEST AND 50PTNS
Mila [183]

Answer:

y=8x

Step-by-step explanation:

the slope is 8/1 you times x by the slope and the y intercept is 0 so you don't add anything to 8x

7 0
3 years ago
Read 2 more answers
A book sold 33,100 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How
matrenka [14]
33100 = 7.8% of total
33100 = .078 x total (change from percent to decimal)
33100/.078 = total (divide both sides by decimal)

424358.9 = total

Round to 424,359 copies.
3 0
3 years ago
A waitress earned $73 for 6 hours of work. The total included $46 in tips. What was her hourly wage?
nadezda [96]

Answer: $4.5/hour

Step-by-step explanation:

Total earned in 6 hours subtracted tips equals wage over 6 hours.

Divide by 6 hours to find individual hourly wage.

5 0
3 years ago
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Find the value of X round your number to the nearest tenths<br><br><br> Explain it please
Anarel [89]

In this case, we must use trigonometry to find the value of x:

        tan(\alpha )=\frac{side-opposite-angle}{side-beside-angle} \\tan(70) = \frac{x}{3} \\3*tan(70) = x\\x = 3*tan(70)\\x = 8.24

Thus the value of x rounded to the nearest tenth is <u>8.2</u>

<u></u>

Hope that helps!

     

8 0
3 years ago
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