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zalisa [80]
2 years ago
9

Rewrite the expression by combining like terms. 4x2 - 2x2 + 2y + 6y2 - y + x2​

Mathematics
1 answer:
olasank [31]2 years ago
3 0

Answer:

32 +6y^2+

Step-by-step explanation:

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A 900-kg giraffe runs across a field at a rate of 50 km/hr. What is the magnitude of its momentum?
ololo11 [35]

Answer:

As per the statement:

A 900-kg giraffe runs across a field at a rate of 50 km/hr.

⇒ m = 900 kg and

v=50 km/hr

Use conversion:

1 km/hr = \frac{5}{18} m/s

v = 50 \times \frac{5}{18} = \frac{250}{18} m/s

The magnitude of its momentum is given by:

p = mv

where

m is the mass in kg

v is the speed in m/s

Substitute the given value we have;

p = 900 \times \frac{250}{18} = 50 \times 250 = 12500 kg m/s

Therefore, the magnitude of its momentum is  12500 kg m/s




3 0
3 years ago
Read 2 more answers
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Evgesh-ka [11]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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inessss [21]

Answer:

Centimeters might be easier because they can be much more precise than inches when there isn't an ideal length. Kilometers might be easier because it would not require such large numbers to work with.

Step-by-step explanation:

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Answer:

x=56

Step-by-step explanation:

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Answer in screen shot below

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