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shtirl [24]
2 years ago
7

100 points and brainliest for correct answer!

Mathematics
1 answer:
dusya [7]2 years ago
4 0
City C (42 and 66 are the two modes they are the most frequent numbers both appearing 3 times)
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You and two friends share 7 cookies equally.How many cookies do you each get?
Wewaii [24]
3 and a half cookies! that should be the answer!
7 0
3 years ago
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6,300,000,000 = 6.3 x 1,000,000,000
Nonamiya [84]
No they are not

scientific notation requires writing the ' × 10^9' part as a 10 with an exponent
7 0
3 years ago
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Help please:))
Blababa [14]

Answer:

a) Because this asks about the radius and height, I assume that we are talking about a cylinder shape.

Remember that for a cylinder of radius R and height H the volume is:

V = pi*R^2*H

And the surface will be:

S = 2*pi*R*H + pi*R^2

where pi = 3.14

Here we know that the volume is 1000cm^3, then:

1000cm^3 = pi*R^2*H

We can rewrite this as:

(1000cm^3)/pi = R^2*H

Now we can isolate H to get:

H = (1000cm^3)/(pi*R^2)

Replacing that in the surface equation, we get:

S = 2*pi*R*H + pi*R^2

S = 2*pi*R*(1000cm^3)/(pi*R^2) + pi*R^2

S = 2*(1000cm^3)/R + pi*R^2

So we want to minimize this.

Then we need to find the zeros of S'

S' = dS/dR = -(2000cm^3)/R^2 + 2*pi*R = 0

So we want to find R such that:

2*pi*R = (2000cm^3)/R^2

2*pi*R^3 = 2000cm^3

R^3 = (2000cm^3/2*3.14)

R = ∛(2000cm^3/2*3.14) = 6.83 cm

The radius that minimizes the surface is R = 6.83 cm

With the equation:

H = (1000cm^3)/(pi*R^2)

We can find the height:

H = (1000cm^3)/(3.14*(6.83 cm)^2) =  6.83 cm

(so the height is equal to the radius)

b) The surface equation is:

S = 2*pi*R*H + pi*R^2

replacing the values of H and R we get:

S = 2*3.14*(6.83 cm)*(6.83 cm) + 3.14*(6.83 cm)^2 = 439.43 cm^2

c) Because if we pack cylinders, there is a lot of space between the cylinders, so when you store it, there will be a lot of space that is not used and that can't be used for other things.

Similarly for transport problems, for that dead space, you would need more trucks to transport your ice cream packages.

3 0
3 years ago
15w, when w = 12 I need help plz
Brrunno [24]

Answer:

180...

Step-by-step explanation:

15 x 12 = 180

6 0
3 years ago
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Two polygons are similar with the longest side of one 8 and the longest side of the other 10. Find the ratio of the areas.
liubo4ka [24]
<span>The ratio of sides is, 8:10 = 4:5
squaring it yields, 16:25 
the ratio of the area is 16:25

</span>
7 0
3 years ago
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