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natta225 [31]
2 years ago
5

1. (5x2-2x+3) + (x2+x+2)

Mathematics
1 answer:
antiseptic1488 [7]2 years ago
3 0
The answer is: x^2-x+15
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Eight people audition for a choir. The choir director must choose one soprano, one altar and one soprano. In how many ways can t
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This is the change in kinetic energy of a system in which a 16 kg object moving at 25 m/s slows to a velocity of 20 m/s.
Natalka [10]

The change in kinetic energy of the  system is 200 J

Kinetic energy is the energy that an object possesses as a result of its motion.

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Kinetic energy = (1/2)m[v - u]²

Where m is the mass of the object, v is the final velocity and u is the initial velocity.

Given that m = 16 kg, v = 20 m/s, u = 25 m/s, hence:

Kinetic energy = (1/2) * 16 * (20 - 25)² = 200 J

The change in kinetic energy of the  system is 200 J

Find out more at: brainly.com/question/12669551

5 0
2 years ago
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