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sladkih [1.3K]
3 years ago
11

Find the value of the expression 3m2 + 2p2 − 15 when m = 3 and p = 10.

Mathematics
2 answers:
photoshop1234 [79]3 years ago
6 0
The answer would be 212 :)
Marianna [84]3 years ago
3 0

Answer:

212

Step-by-step explanation:

The given expression is 3m^2+2p^2-15

Substituting m = 3 and p = 10 in the expression

3(3)^2+2(10)^2-15

Now, simplify this expression

3\times9+2\times100-15\\\\=27+200-15\\\\=227-15\\\\=212

Therefore, the value of the expression is 212.

Third option is correct.

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D + 4/3 = -1/3<br> find d.
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Two objects were lifted by a machine. One object had a mass of 2 kilograms and was lifted at a speed of 2m/sec. the other had a
OLga [1]
Sadly, after giving all the necessary data, you forgot to ask the question.
Here are some general considerations that jump out when we play with
that data:

<em>For the first object:</em>
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The force needed to lift it at a steady speed is 19.6 newtons.
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If it's rising at 2 meters per second, then it's gaining 39.2 joules of
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The machine that's lifting it is providing 39.2 watts of lifting power.
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<em>For the second object:</em>
The object's weight is (mass) x (gravity) = 4 x 9.8 = 39.2 newtons
The force needed to lift it at a steady speed is 39.2 newtons.
The potential energy it gains every time it rises 1 meter is 39.2 joules.
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The machine that's lifting it is providing 117.6 watts of lifting power.
The object's kinetic energy is 1/2 (mass) (speed)² = 1/2(4)(9) = 18 joules.

If you go back and find out what the question is, there's a good chance that
you might find the answer here, or something that can lead you to it.

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Answer:

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