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Gala2k [10]
3 years ago
9

HELP ME I BEG YOU ALL

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

A) 42 boys can count. B) 42/53

Step-by-step explanation:

Good luckk

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What is the volume of a cylinder with a radius of 10 meters and a height of 4 meters?
Licemer1 [7]

Answer:

The volume of the cylinder is about 1256.6 cubic meters.

Step-by-step explanation:

The volume of a cylinder is given by the formula:

\displaystyle V=\pi r^2h

Where <em>r</em> is the radius and <em>h</em> is the height.

Our radius is 10 meters and our height is four meters. Substitute:

\displaystyle V=\pi(10)^2(4)

Evaluate:

V=400\pi \text{ m}^3\approx 1256.6\text{ m}^3

Thus, the volume of the cylinder is about 1256.6 cubic meters.

3 0
3 years ago
3. Han has a fish tank that has a length of 14 inches and a width of 7 inches. Han puts in
muminat
The height of the tank is 12 inches
4 0
3 years ago
Hudson spent $15.00 on finishing nails for the
sweet [91]

Answer:

He purchased 125 nails.

Step-by-step explanation:

if each nail cost $0.12 you would take $15 and divide it by $0.12.

6 0
3 years ago
A box is to be constructed from a sheet of cardboard that is 10 cm by 60 cm by cutting out squares of length x by x from each co
Stells [14]

Volume of a rectangular box = length x width x height<span>

From the problem statement,
length = 60 - 2x
width = 10 - 2x
height = x</span>

<span>
where x is the height of the box or the side of the equal squares from each corner and turning up the sides

V = (60-2x) (10-2x) (x)
V = (60 - 2x) (10x - 2x^2)
V = 600x - 120x^2 -20x^2 + 4x^3
V = 4x^3 - 100x^2 + 600x

To maximize the volume, we differentiate the expression of the volume and equate it to zero.

V = </span>4x^3 - 100x^2 + 600x<span>
dV/dx = 12x^2 - 200x + 600
12x^2 - 200x + 600 = 0</span>

<span>x^2 - 50/3x + 50 = 0

Solving for x,
x1 = 12.74 ;      Volume = -315.56  (cannot be negative)
x2 = 3.92 ;      Volume = 1056.31

So, the answer would be that the maximum volume would be 1056.31 cm^3.
</span><span>
</span>
6 0
3 years ago
I'm not sure how to solve this. please help​
zepelin [54]

Answer:

The awnser is 2 and 3!!!!!!

8 0
3 years ago
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