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makkiz [27]
3 years ago
7

7. A boy on ice skates has a momentum of 200 kg m/s to the left at a velocity of 20

Mathematics
1 answer:
tankabanditka [31]3 years ago
4 0

Answer: 10 m/s

Step-by-step explanation:

Given

Momentum of boy P=200\ kg.m/s

Mass of boy is m=20\ kg

Momentum is the product of mass and velocity

P=mv

Substitute value

\Rightarrow 200=20\times v\\\Rightarrow v=10\ m/s

Thus, the boy is moving with a velocity of 10 m/s

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Answer:

I'm pretty sure the answer is 8.96

Step-by-step explanation:

1.28×7=8.96

8 0
3 years ago
8n^2-4(7m^3+5n^2)<br> help
Rasek [7]
Hello there!


8m² - 4(7m³ + 5n²)

You wanna start by using the distributive property

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Calcula la altura de Juan sabiendo que proyecta una sombra de 2 metros en el momento en que Pedro que mide 1,80 metros proyecta
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Answer:

La altura de Juan por lo tanto es de 1.6 metros de altura

Step-by-step explanation:

Segun los datos que se encuentran en el ejercicio, tenemos lo siguiente:

Juan proyecta una sombra de 2 metros en el momento en que Pedro que mide 1,80.

Supongamos que x es la altura de juan que tenemos que calcular.

La altura de Juan por lo tanto la podemos calcular de la siguiente manera con la siguiente formula:

x= (1.8 metros/2.25 metros)*2

x=1.6 metros

La altura de Juan por lo tanto es de 1.6 metros de altura

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Marat540 [252]

Answer:

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Step-by-step explanation:

BAC names the vertices in the order longest-side, shortest-side. That same order is FDE in the other triangle, eliminating choiced B and D. The triangles are not right triangles, eliminating choice A.

The only viable answer choice is C.

No specific sides are shown as being congruent, but two angles are, so we could claim congruence by ASA or AAS. Answer choice C uses the latter.

8 0
2 years ago
Read 2 more answers
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