2 years ago

Evaluate variable expressions

Mathematics

1 answer:

baherus [9]2 years ago

5 0

First multiply 5^2 =25+10•-2=25-20=5

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Answer:

$30

Step-by-step explanation:

4% of 385.48

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Answer:

They traveling at $0.37\ m/s$ in backward direction.

Step-by-step explanation:

Given mass of Ammy $m_1=55kg$

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Also, mass of Jenny $m_2=40kg$

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Let velocity in forward direction is positive and velocity in backward direction is negative.

Also, velocity after crash is $v$

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Conservation of momentum says momentum before collision should equal to momentum after collision.

$m_1v_1+m_2v_2=(m_1+m_2)v$

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Step-by-step explanation:

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