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ASHA 777 [7]
3 years ago
6

If the radius of the cone is 9cm and the height is 6cm what is the volume

Mathematics
2 answers:
ahrayia [7]3 years ago
7 0
54
you’re welcome:))))))
Charra [1.4K]3 years ago
4 0
The formula for the volume of a cone:
pi(r^2)*(height/3)=Volume
pi(9^2)*(6/3)=
(81)2pi=
162 pi= volume

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If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

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3 years ago
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kondor19780726 [428]
Deal with the numbers and variables step by step 

-20/48  = -5/12
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6 0
3 years ago
Convert 680 kilometers into miles. Round your answer to the nearest whole number.
Alex17521 [72]

Answer:

423

Step-by-step explanation:

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3 years ago
Someone who actually knows what they doing please ‍♀️
Firdavs [7]

Answer:

-2/5

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
PLZ HALP!!!!! the length of a rectange is 1 7/9 inches, and its width is 3/4 of its length. find the area of this rectangle.
11Alexandr11 [23.1K]

9514 1404 393

Answer:

  2 10/27 square inches

Step-by-step explanation:

The length is 1 7/9 = 16/9 inches. The width is 3/4 of that, so is ...

  (3/4)(16/9) = 4/3 inches

The area is the product of length and width, so is ...

  A = (16/9 in)(4/3 in) = 64/27 in²

The area of the rectangle is 2 10/27 square inches.

7 0
3 years ago
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