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Anna35 [415]
3 years ago
11

A 4 kg bird is flying with a velocity of 4 meters per second it what is its kinetic energy

Mathematics
1 answer:
KonstantinChe [14]3 years ago
8 0
KE=1/2*4000mg*4 squared= 16
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Sabeena had 15 3/4m long ribbon. She cut into two pieces such that the length of one pieces is 9 1/2m. Find the length of other
DochEvi [55]

Answer:

6 1/4

Step-by-step explanation:

Total length of the ribbon= 15 3/4 m= 63/4 m

One piece= 9 1/2 m= 19/2 m

Other piece length =X

X= 63/4-19/2

  =63/4-38/4

  =25/4

  =6 1/4

3 0
3 years ago
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What is the difference between a subset and a proper subset?
muminat

Answer:

A subset is when all of the elements in the subset are in the actual set. A proper subset is a subset which the actual set has at least on more element than the proper subset.

Step-by-step explanation:

For example, Set A, {1,2,3} is a subset of B {1,2,3}. But Set C, {1,2} is a proper subset of B. Set {5,8} is a subset of {2,5,8}.

6 0
3 years ago
$2.95 notebooks; 5% tax
dimaraw [331]
Turn 5% into a decimal which is 0.05, then multiply by 2.95 = 0.1475
round it off, which is 0.15
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7 0
3 years ago
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**THIS ONE 15 POINTS<br> Solve by Completing the Square
lions [1.4K]
X = 1/2 and x is also equal to 1/5
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3 years ago
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This is solving systems by substituting <br><br> y=-2x+5<br> 3y=-x-5
jok3333 [9.3K]

Answer:

y = - 3

Step-by-step explanation:

3(-2x+5)=-x-5

-6x+15=-x-5

-5x=-20

x=4

y=-2(4)+5

y=-3

7 0
3 years ago
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