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NemiM [27]
3 years ago
13

If rectangle ABCD is dilated by a scale factor of 3 with a center of dilation at vertex D, what is the perimeter of A'B'C'D?

Mathematics
1 answer:
kramer3 years ago
5 0
The ans is C) 90 units
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A circle with area 16pi has a sector with a central angle of 8/5pi radians. What is the area of the sector?
lianna [129]

Answer:

The area of the sector is 12.8\pi\ units^2

Step-by-step explanation:

we know that

The area of a complete circle (16π units^2) subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector , if the central angle is equal to 8π/5 radians

\frac{16\pi}{2\pi}=\frac{x}{(8\pi/5)}\\\\x=8(8\pi/5)\\\\x= 12.8\pi\ units^2

4 0
3 years ago
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20. Which measurement (with its units) is plotted on the x-axis?
bagirrra123 [75]

Answer: can you put the picture so I can tell you more? The x axis is the horizontal line. It has negatives on the left and positives on the right. Hope this helps!

Step-by-step explanation:

8 0
3 years ago
Two numbers are graphed on the number line below. Consider the inequality t values graphed on the number line make the inequalit
Black_prince [1.1K]

Answer: t=7 and r=-3

So if you t<r + 5 count the number line

Step-by-step explanation:

8 0
2 years ago
In the diagram above, rectangles DEFG and WXYZ are similar. The ratio of the area of DEFG to WYXZ is 1:4. A student's work to fi
zalisa [80]
Was the 12 of GF given??
The area ratio should be 1:4, so if l×w = area (a) of DEFG, then L×W = Area (A) of WXYZ.
Since 4:1 is 4×1, A = 4×a or 4a
Since GF is length (l) and is 12, we can say that 12w = a
12×4 = 48 for length of ZY (L), and WX is also 48, and to find W would be: 48W = A
48W = 4a, since A=4a
Not sure what else you want by the limited information given!
8 0
3 years ago
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List the whole numbers from 1 to 10 that are divisors of 12,300
Vlad [161]
1, 2, 3, 4, 5, 6, 10
4 0
3 years ago
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