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vlabodo [156]
3 years ago
5

Sam chose a number. He then multiplied his number by 2 and added 7. His result was 23. What was his original number?

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
6 0
His orignal number was 8
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A right circular cylinder has a height of ​ 20 1/2 ​ ft and a diameter ​ 1 1/5 ​ times its height.
BARSIC [14]

Answer:

It would be 9,738.54

Step-by-step explanation: For starters, V= r^2(3.14)h

Make things easier by changing 20 1/2 to 20.5)) and 1 1/2 to 1.2))

Now multiply them to get your diameter. 20.5 * 1.20= 24.6.  

You now have a diameter of 24.6. Now, divide 24.6 by 2 to get your radius. So, now you have a radius of 12.3. All you have to do now is plug in your numbers.

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you should get 9738.5373, but rounding by the hundredths place gets you 9738.54

Do well on your tests guys!


7 0
3 years ago
Which angle in this quadrilateral is an obtuse angle?
pashok25 [27]

Answer:

Angle L

Step-by-step explanation:

An obtuse angle has a measure between 90° and 180°.

Angles J and K are right angles, so their measures are equal and are 90°. Angle M has measure 64° and is acute.

Only angle L, which measures 116°, has a measure between 90° and 180° and is an obtuse angle.

Answer: Angle L

4 0
2 years ago
Can someone please tell me this?
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Answer:

it is c

Step-by-step explanation:

brainly plz

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