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vampirchik [111]
3 years ago
15

What is sum of the vectors, LeftAngleBracket 4, negative 5 RightAngleBracket and LeftAngleBracket 10, 2 RightAngleBracket?

Mathematics
2 answers:
mylen [45]3 years ago
6 0

Answer:

14,-3

Step-by-step explanation:

pentagon [3]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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What size does the radius of a sphere need to be for its volume to be larger than its surface area? HINT! It is less than 10. HI
Lera25 [3.4K]
We know that
volume of a sphere=(4/3)*pi*r³----> (r/3)*(4*pi*r²)
and
surface area of sphere=4*pi*r²
so
the volume of a sphere=(r/3)*surface area of sphere
therefore
if r=3
volume of a sphere=(3/3)*surface area of sphere
volume of a sphere=surface area of sphere

if r> 3
the term (r/3) is > 0
so
volume of a sphere > surface area of sphere

if r<3
the term (r/3) is < 0
so
volume of a sphere < surface area of sphere

examples
1) for radius r=3 units
volume of a sphere=(4/3)*pi*3³----> 113.04 unit³
surface area=4*pi*3²----> 113.04 units²
volume is equal to surface area

2) for radius r=10 units
volume of a sphere=(4/3)*pi*10³----> 4186.67 unit³
surface area=4*pi*10²----> 1256 units²
volume is > surface area

3) for radius r=2 units
volume of a sphere=(4/3)*pi*2³----> 33.49 unit³
surface area=4*pi*2²----> 50.24 units²
volume is <  surface area
7 0
3 years ago
Need help. Need to know how to work it out
Usimov [2.4K]

Answer:

Daniel only

Step-by-step explanation:

If you take 72 inches and convert it into yards you get 2 yards.

(divide the length value by 36. so 72 divided by 36 and you get 2 yards)

4 0
4 years ago
Read 2 more answers
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grigory [225]
10:14, 15:21, 20:28 would be a few. Add five two the first and seven to the second number.
5 0
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What is 4x-8 equivalent to?​
Firlakuza [10]

Answer:

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Step-by-step explanation:

6 0
4 years ago
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umka2103 [35]

Answer:

If I'm not mistaken the correct answer would be 241.

Step-by-step explanation:

I always split it up by doing 12x11, then 6x5, 7x10, 3x3, then you add the answers together to get 241

6 0
3 years ago
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