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True [87]
3 years ago
13

Here are two closed containers and four balls just fit into each container. Each ball has a diameter of 60mm. Which container ha

s a smaller surface area? You must show your working.
Mathematics
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

Container B has smaller surface area.

Step-by-step explanation:

Given:

Container A

Radius = 60/2 = 30 mm

Height = 4 x 60 = 240 mm

Container B

Length = 120

Width = 120

Height = 60

Computation:

Surface area of container A (Cylinder) = 2πr[h+r]

Surface area of container A (Cylinder) = 2[22/7][60][120+60]

Surface area of container A (Cylinder) = 67,885.70 mm² (Approx)

Surface area of container B (Cuboid) = 2[lb+bh+hl]

Surface area of container B (Cuboid) = 2[(14,400)+(7,200)+(7,200)]

Surface area of container B (Cuboid) = 57,600 mm²

Container B has smaller surface area.

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$840 dollars

Step-by-step explanation:

Divide 540 by 9 to get the cost of 1 book then multiply it by 14

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2 years ago
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SOMEONE PLEASE HELP!
prisoha [69]

Answer:

XY=16.2

Step-by-step explanation:

It is given that the two figures are similar. This means that the ratio between the corresponding sides is equal. In essence, a side in the larger figure over its corresponding side in the smaller figure is equal to another side in the larger figure over its corresponding side in the smaller figure. Therefore, one can set up a proportion and solve to find the unknown side.

\frac{WX}{ST}=\frac{XY}{TU}

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Inverse operations,

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2 years ago
Janie bought a shirt at American Eagle and spent a total of $36.04, paying 6% in sales tax. The shirt was marked down 15% and wa
ss7ja [257]

Answer:

40·(1 - 0.15)·0.06 = 2.04

or

36.04·0.06/1.06 = 2.04


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3 years ago
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if we increased one side of a square by 5 units and decreased the other by 3 units the area of the resulting rectangle would be
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Answer:

18 units

Step-by-step explanation:

So let's list out the sides.

for the first square let's just call them x

for the second square then they would be x+5 and x-3

So let's write out their areas we will cal the area of the first one z

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since z = x^2 we can set up the second equation as a quadratic.

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Answer:

A.

Step-by-step explanation:

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