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Tatiana [17]
3 years ago
8

What is the value of k?

Mathematics
2 answers:
Virty [35]3 years ago
5 0

Answer:

the is k=-0.4

Step-by-step explanation:

sorry if I did it wrong

finlep [7]3 years ago
5 0

Answer:

k = -\frac{2}{5}

I can't see the answer choices. Sorry, if I'm wrong.

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false
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3 years ago
The volume of a cone with a height of 10 meters is 20 pi cubic meters. what is the diameter of the cone?
lesya [120]

Answer:

2√6 m

Step-by-step explanation:

The formula for the vol. of a cone is V = (1/3)(area of base)(height).

Here, V = 20π m³ = (1/3)(area of the base)(10 m)

We need to solve for (area of the base).

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We still must find the diameter of the base.  Let's find the radius of the base first:      The formula for the area of a circle is A = πr².  Here we have 6π m² = πr², which tells us that r² = 6 m².  Since d = 2r, and r = d/2, r² = d²/4.     Then the equation 6 m² = r²  becomes:

6 m² = d²/4.

Solve this for d.   Multiplying both sides by 4, we get:

24 m² = d²2, and d = √(24 m²) = 2√6 m  

The cone diameter is 2√6 m.

8 0
3 years ago
Read 2 more answers
An equation for m=-1,b=3
Slav-nsk [51]
So the formula is y=mx+b 
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</span>I hope this is what you need :)
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