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Dvinal [7]
3 years ago
14

Help I need the answer

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
3 0

Answer:

Step-by-step explanation: i will help u what is your question?

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A circle has a radius of length r. If you mark off an arc on the circle of length 2r what is the measurement of the angle that s
Inessa05 [86]
A full circle has a circumference of 2πr and an angle of 2π radians.

Set up a proportion:
2πr - 2π rad
2r - x rad

2\pi r \times x = 2\pi \times 2 r \\
2\pi r x=4 \pi r \\
x=\frac{4 \pi r}{2 \pi r} \\
x=2

The answer is D. 2 radians.
6 0
3 years ago
Read 2 more answers
The diameter of a circle is 9 feet. Find the radius.
slava [35]
The radius is half of the diameter.

9/2=4.5

The radius is 4.5 feet.

Hope this helps!
4 0
3 years ago
Draw and compare models of 3/4 of a pizza pie and 6/8 of a same size pizza pie. Plzzzz help.
ludmilkaskok [199]
Three fourths is the same thing as six eighths so first draw three fourths of a pie shade three out of four next make it into seighths now you have six shaded in!!!(hope this helps!!!;)
6 0
3 years ago
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Can anyone help me with this? I will mark you as brainliest
creativ13 [48]

Answer:

6×6×6×6×6×6×6=279936

6×6×6×6×6=7776

279936÷7776= 36

36 is the answer but u could express it as: (6²)....Six squared

Step-by-step explanation:

4 0
3 years ago
8. Over a period of 3 hours, the outside temperature changed an average of -2.25 Fahrenheit per hour. Which statement correctly
ryzh [129]

Answer:

c

Step-by-step explanation:

-2.25*3 = 6.75 decreased (since negative)

4 0
3 years ago
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