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dangina [55]
2 years ago
14

(3y^2+4y+4)-(7y^2+3y-6)

Mathematics
1 answer:
e-lub [12.9K]2 years ago
3 0

plz mark brainliest if it helps

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In a collision, a 5 kg mass moving at 2m/s transfers all of its momentum to a 1 kg mass. What is the velocity of the 1kg mass af
statuscvo [17]
Answer:
velocity = 10 m/sec in the same direction as the first body did

Explanation:
The momentum of the body can be calculated as follows:
momentum = mass * velocity

For the first body, we have:
mass = 5 kg
velocity = 2 m/sec
momentum = mass * velocity
momentum = 5 * 2 = 10 kg.m/sec

We know that this momentum is transferred completely to the second body

For the second bode, we have:
momentum = 10 Kg.m/sec
mass = 1 kg
momentum = mass * velocity
10 = 1 * velocity 
velocity = 10/1
velocity = 10 m/sec

Finally, we should get the direction of the motion:
Both the velocity of the first and second bodies have positive values. Therefore, the second body is moving in the same direction as the first body did.

Hope this helps :)
6 0
3 years ago
Read 2 more answers
Solve the following equations by finding the value of x.
kozerog [31]
1.4 2.7 3. 12 4 6/7 5 8
4 0
3 years ago
Which ordered pair is a solution of the equation 2x-3y=18 A:(0,8)B:(2,5)C:(3,-4)D:(6,2)
Archy [21]
<span>2x-3y=18 
when x = 3
2(3) - 3y = 18
6 - 3y = 18
-3y = 12
   y = -4

so(3, -4) is the solution

answer
</span><span>(3,-4)</span>
5 0
2 years ago
Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either 3 or 9?
MariettaO [177]

|\Omega|=6^2=36\\ |A|=\underbrace{2}_{\text{the sum is 3}}+\underbrace{4}_{\text{the sum is 9}}=6\\\\ P(A)=\dfrac{6}{36}=\dfrac{1}{6}\approx17\%

7 0
3 years ago
A choreographer uses a number line to position dancers for a ballet. Dancers A and B
kenny6666 [7]
First we will calculate the distance AB. 
AB=B-A=23-5=18.
If C is 5/9 of the distance, mathematically speaking that means:
C= \frac{5}{6} *AB= \frac{5}{6} *18=15.
R: The coordonate of C is 15.
5 0
2 years ago
Read 2 more answers
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