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Brut [27]
3 years ago
6

Pls someone pls help me with this question pls

Mathematics
2 answers:
Dmitrij [34]3 years ago
5 0

Answer:

12

Step-by-step explanation:

adell [148]3 years ago
3 0
The answer is 12 i think
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£3.50= %of£10 answer this question i raelly dont get it in any way
ziro4ka [17]
\dfrac{\pounds 3.50}{\pounds10}\cdot100\%=\\
0.35\cdot100\%=\\
35\%
3 0
3 years ago
A box with a square base and open top must have a volume of 32,000 cm3. find the dimensions of the box that mini- mize the amoun
zmey [24]
Alrighty


squaer base so length=width, nice


v=lwh
but in this case, l=w, so replace l with w
V=w²h

and volume is 32000
32000=w²h


the amount of materials is the surface area
note that there is no top
so
SA=LW+2H(L+W)
L=W so
SA=W²+2H(2W)
SA=W²+4HW

alrighty

we gots
SA=W²+4HW and
32000=W²H

we want to minimize the square foottage
get rid of one of the variables
32000=W²H
solve for H
32000/W²=H
subsitute

SA=W²+4WH
SA=W²+4W(32000/W²)
SA=W²+128000/W

take derivitive to find the minimum
dSA/dW=2W-128000/W²
where does it equal 0?

0=2W-1280000/W²
128000/W²=2W
128000=2W³
64000=W³
40=W

so sub back
32000/W²=H
32000/(40)²=H
32000/(1600)=H
20=H

the box is 20cm height and the width and length are 40cm
7 0
3 years ago
Find - 4 - 2 1/2 expression on the number line by drawing an arrow
Tema [17]

Answer:

Step-by-step explanation:

4 0
3 years ago
How does the length of the diameter of a circle relate to the length of the radius of that same circle
djyliett [7]
The diameter is twice as big as the radius

7 0
3 years ago
What is the order of steps to calculate the volume of prime?
Vlad1618 [11]

Answer

V= Base x Height x Width

Step-by-step explanation:

7 0
3 years ago
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