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choli [55]
2 years ago
6

A disc has a diameter of 21 cm while a mini disc has a diameter of 14cm. Write the ratio of the mini disc diameter to the disc d

iameter.
Mathematics
1 answer:
Serjik [45]2 years ago
4 0

Answer:

mini disc diameter:disc diameter

14cm:21cm = 7:10.5 = 3.5:5.25 = 1:1.5

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You just do 120 divided by 8 which is about 15 newspapers
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Find the slope of each line. <br> 2
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Answer/explanation :

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2 years ago
Yolanda has finished 45 percent of her homework and she has finished 27 problems. How many problems was Yolanda assigned
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6 0
2 years ago
A closed box has a square base with side length l feet and height h feet. Given that the volume of the box is 29 cubic feet, exp
qwelly [4]

Answer:

The surface area of the box in terms of l is 2l^2 +116/l

Step-by-step explanation:

The length of the box = l

The height of the box = h

The volume of the box can be obtained by multiplying the surface area of the base by the height of the box.

The surface area of the base of the box is a square, so it will be obtained by multiplying l \times l = l^2

hence volume = l^2 \times h =29

Notice that we are told to give our answer in terms of l, so we will make h the Subject of the formula in the above equation.

h =29/l^2

In the next phase, we are to find the surface area of the box.

The box has a square base, hence it will be made up of

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This means the surface area will be

2(l^2) +4 (l\times h)

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Hence, surface area =

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The surface area of the box in terms of l is 2l^2 +116/l

4 0
3 years ago
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