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Anastaziya [24]
3 years ago
14

Help me to answer my questions please

Physics
1 answer:
Andrei [34K]3 years ago
3 0
2 is c
3 is a 
4 is b
5 is c
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Any five chapter 9 institutions found in the constitution of south africa
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7 0
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4 0
3 years ago
A projectile is fired vertically from Earth's surface with an initial speed v0. Neglecting air drag, how far above the surface o
lidiya [134]
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3 0
3 years ago
I just need x isolated
mamaluj [8]

Answer:

x=\frac{-y+\sqrt{y^2+4rt} }{2r}

x=\frac{-y-\sqrt{y^2+4rt} }{2r}

Explanation:

rx+y=\frac{t}{x}\\\\x(rx+y)=(\frac{t}{x})x\\\\rx^2+yx=t\\\\rx^2+yx-t=t-t\\\\rx^2+yx-t=0

Solve using the quadratic formula.

x=\frac{-y+\sqrt{y^2+4rt} }{2r}

x=\frac{-y-\sqrt{y^2+4rt} }{2r}

7 0
3 years ago
Read 2 more answers
Can I also get help on this??
Xelga [282]

Answer:

25

Explanation:

8 0
2 years ago
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