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TiliK225 [7]
4 years ago
12

A right come has a volume of 24pie cubic meters and a radius of 3 meters find the height of the cone

Mathematics
1 answer:
JulijaS [17]4 years ago
4 0
Hello!

The equation for find the h when given volume and radius is

h = 3 \frac{V}{ \pi  r^{2} }

h is height
v is volume
r is radius

Put in the values you know

3 \frac{24 \pi }{ \pi  3^{2} }

Since there is pi on the top and bottom we can get rid of it

multiply the 3 by the top number

\frac{72}{9}

the answer is 8m

Hope this helps!
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Mario painted 2/6 of the wall in his bedroom. Mei Lyn painted 2/4 of a wall in her bedroom.
Lesechka [4]
Well I am assuming you want to compare them or something so yeah:

You have to find a common denominator of 4 & 6, so you could multiply them together, this makes 24. Because you have to do the same thing to the top and the bottom, you have to multiply 2/4 (which is now 2/24) by 6, and the 2/6 (which again is 2/24) by 4 which leaves you with 12/24 (2/4) and 8/24 (2/6).

We can simplify these fractions by dividing them, but as you may know 12 is half of 24 so 12/24 would also be 1/2.
If you keep dividing by 2 you will find that 8/24 is also equal to 1/3. This is easier to find out by the beginning number but I mentioned it anyway because I didn't understand what you were asking.

Overall if you noticed when comparing 2/4 and 2/6 we found that Mei Lyn painted more wall than Mario.
4 0
4 years ago
Determine algebraically whether the function is even, odd, or neither even nor odd.
ololo11 [35]

Answer:

odd

Step-by-step explanation:

Just so you know there are shortcuts for determining if a polynomial function is even or odd. You just to make sure you use that x=x^1 and if you have a constant, write it as constant*x^0 (since x^0=1)

THEN!

If all of your exponents are odd then the function is odd

If all of your exponents are even then the function is even

Now you have -4x^3+4x^1

3 and 1 are odd it is an odd function

This a short cut not the legit algebra way

let me show you that now:

For it to be even you have f(-x)=f(x)

For it be odd you have f(-x)=-f(x)

If you don't have either of those cases you say it is neither

So let's check

plug in -x  -4(-x)^3+4(-x)=-4*-x^3+-4x=-4x^3+-4x

that's not the same so not even

with if we factor out -1 .... well if we do that we get -(4x^3+4x)=-f(x)

so it is odd.

6 0
4 years ago
The speed limit in front of the school is 25 miles per hour. This is half the speed of a major street one mile away. What is the
USPshnik [31]

Answer:

50 miles per hour

Step-by-step explanation:

this is because 25 is half of 50.

4 0
3 years ago
Read 2 more answers
If Rick walked for 20 minutes at 5 miles per hour, how far did he travel? Round to the nearest tenth and type the number into th
Aleks04 [339]

Answer:

1/4 miles per minute

or

15 miles per hour

Step-by-step explanation:

Rember the equation

time * speed = distance

or

T * S = D

now plug in the known values

time = 20 min

or you could also say that the time is 1/3 hour

distance = 5 miles

20min * S = 5miles

divide by 20

S = 5 / 20

S = 1/4  mile per minute

another way of doing this with different units is

1/3 hour * S = 5 miles

divide 1/3 (same as multiplying 3)

s = 15 miles per hour

7 0
4 years ago
What is 2⋅(3+5−1)⋅2<br> the dots are multiplication
KatRina [158]
The answer is 28 for this equation
8 0
3 years ago
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