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Tomtit [17]
2 years ago
6

Find the area of a sector of a circle whose diameter is 21 cm and whose central angle is 10 degrees

Mathematics
1 answer:
Pavlova-9 [17]2 years ago
8 0

Answer:

Area 38.484510 dm^2 (square decimeters)

Step-by-step explanation:

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120 times 1/2<br>Do not divide, whole number times fraction.​
andreyandreev [35.5K]

Answer:

60

Step-by-step explanation:

write 120 like this: 120/2

Then just multiply the numerators.

Which gets you 120/2.

Then change it it to a mixed fraction which is 60.

7 0
3 years ago
Find the perimeter. Use 3.14 for pi.
balu736 [363]

Step-by-step explanation:

perimeter=4×6-1/4 ×2π×3=24-1/2×3.14×3=24-4.71=19.29cm

3 0
3 years ago
The same architect wants to draw a room that has an area of 175 ft². What will be the area of the room in his drawing in square
Dominik [7]

Answer:

25,200in²

Step-by-step explanation:

The architect wants to draw a room that has an area of 175 ft². We need to find this measurement in square inches.

<u>Square feet and square inches are different from feet and inches. </u>

We should know that a square foot is 144 square inches.

Multiply 175 * 144.

175 * 144=25200

So the same architect wants to draw a room that should have an area of 25,200in².

<em>Brainilest Appreciated. </em>

3 0
3 years ago
I need help with this question​
Artyom0805 [142]

Answer:

Step-by-step explanation:

It's algebra really, basically make a system of equations.

1b+5j=t

3b+2j=2t

I'm gonna solve the first one for buckets so we have it in terms of jars.

b+5j=t

b=t-5j

Now I plug that into the other equation

3b+2j=2t

3(t-5j)+2j=2t

3t-15j+2j=2t

Now, since it wants how many jars are in one tub, I want to solve it so there's 1t on one side of the equation and all js on the other.  or it other words solve for t.

3t-15j+2j=2t

3t-13j = 2t

3t = 2t+13j

t = 13j

So it takes 13 jars to make one tub, or one jar is 1/13 of a tub.  You could then plug that in to one of the equations and find how much a  bucket is.  

5 0
3 years ago
Simplify the expression:<br> 3(5s + 2) =
Licemer1 [7]

Answer:

The answer is =15s+6

Step-by-step explanation:

3(5s + 2)

=15s+6

5 0
3 years ago
Read 2 more answers
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