Answer: 8.2×10^-3
Move the decimal over three places to eliminate unnecessary numbers (0s). Since you are moving the decimal to the right it will be 10 to a negative number.
Nota: am folosit Google Translate așa că sper sensul nu se pierde în traducere<span>
Sunt presupunând că t, g, și c sunt constante
</span>simplifica
f(x)=cg²t²x²
amintiți-vă că derivitive de af (x), în cazul în care a este o constantă este un lucru ori mai mare decât derivitve lui f (x)
f(x)=cg²t²(x²)
<span>Amintiti-va: derivitive lui

este

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<span>f'(x)=cg²t²(2x¹)
f'(x)=cg²t²(2x)
f'(x)=2cg²t²x</span>
Hello! :)
To solve you equation, we will first Distribute
(-3) (w) + (-3) (3) + 4w
= -3w + -9 +4w
Now, we will combine like terms
-3w + -9 + 4w
= (-3w + 4w) + (-9)
= w + 9
Hope this helped you!
THEDIPER
Remark
Multiply both sides of the equation by 25. Then you have an equation that you have already done probably.
Step One
Multiply both sides of the equation by 25
1 * (20 - t) = 4t - (3/5) * 25 Every part of the equation must be multiplied by 25
(20 - t) = 4t - 75/5 3*25/5 = 75/5
20 - t = 4t - 15 Add t to both sides
20 - t + t =4t + t - 15 Combine like terms
20 = 5t - 15 Add 15 to both sides
20 + 15 = 5t - 15 + 15 Combine like terms
35 = 5t Divide by 5
35/5 = 5t/5 Switch sides
t = 7 Answer
Answer: 10 m/s
Step-by-step explanation:
Given
Momentum of boy 
Mass of boy is 
Momentum is the product of mass and velocity

Substitute value

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