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Lorico [155]
3 years ago
11

a box was measured with a degree of accuracy to the nearest 2cm; 24cm x 24cm x 20cm. what is the largest possible volume of the

box to the nearest cm3
Mathematics
1 answer:
DochEvi [55]3 years ago
5 0
For any value, e.g. a, to the nearest x units, the upper and lower bounds are:
(a + x/2) and (a - x/2)
For your question, there are three dimensions so:
Dealing with the first one, we have 24 cm to the nearest 2 cm so the boundaries are:
Upper boundary: 24 + 2/2 = 25
Lower boundary: 24 - 2/2 = 23
The second dimension is the same as the first in value and is also given to the nearest 2 cm so the boundaries are the same as for the first.
The third dimension is 20 cm to the nearest 2 cm so the boundaries are:
Upper boundary: 20 + 2/2 = 21
Lower boundary: 20 - 2/2 = 19

To get the largest possible area, we take the upper bounds of all the dimensions and multiply them so:
25 * 25 * 21 = 13125 cm³
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Answer:

x = 16/y

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y =16/x

Step-by-step explanation:

31=xy+15

subtract 15 from both sides of the equation:

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y =16/x

6 0
3 years ago
The Reunion Tower in Dallas, Texas, is topped by a spherical dome that has a surface area of approximately 13,924 \pi square fee
Salsk061 [2.6K]

The volume of the spherical dome will be 12.9π cubic feet when the surface area of the dome is 13.924π.

<h3>What is the volume of the sphere?</h3>

The volume of the cone is the amount of quantity, which is obtained in the 3-dimensional space. The dome is the shape of a semi-sphere the volume of the dome will be half of the volume of the sphere.

Given that the Reunion Tower in Dallas, Texas, is topped by a spherical dome that has a surface area of approximately 13,924π square feet.

The volume of the dome will be calculated as below:-

SA = 13.924π

2πr² = 13.92π

r = √6.96

r = 2.63 feet

Volume = 2 / 3 πr³

Volume = ( 2 / 3 ) π ( 2.63)³

Volume = 12.24π cubic feet

Therefore, the volume of the spherical dome will be 12.9π cubic feet.

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7 0
1 year ago
What is the cube root of b^27
Sophie [7]
1 byte9 Cube root of b^27 = b^27/3 = b^9.
4 0
3 years ago
Bobs family of three was driving to Washington D.C.. They were going to stay overnight, sightsee during the next day, and return
ss7ja [257]
Hello!

To find out if this food is enough we will add together all of the prices and multiply it by three to see if it is enough.

3(4.89+5+8.49)=55.14

Yes! They will have enough money with $4.86 to spare!

I hope this helps!
5 0
3 years ago
Why are tenths, fifths, and fourths easy to convert to percent's?
meriva
Because they all go into 100 easily. for example 10*10=100 5*20=100
5 0
3 years ago
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