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gulaghasi [49]
3 years ago
13

Help meeeeeeeeeeeeeeeeeeeeeeeee

Mathematics
2 answers:
Sauron [17]3 years ago
7 0

Answer:

118.75

Step-by-step explanation:

hope it helps

...

IRINA_888 [86]3 years ago
3 0

Answer:

118.75

Step-by-step explanation:

47.50 multiplied by 2.5 would equal 118.75

ur welcome :)

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A steel ball is dropped from a building’s roof and passes a window, taking 0.125 s to fall from the top to the bottom of the win
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Answer:

20.425 m

Step-by-step explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

s=ut+\frac{1}{2}at^2\\\Rightarrow u=\frac{s-\frac{1}{2}at^2}{t}\\\Rightarrow u=\frac{1.2-\frac{1}{2}\times 9.81\times 0.125^2}{0.125}\\\Rightarrow u=8.98\ m/s

Now this will the final velocity when it reaches the top of the window

v^2-u^2=2as\\\Rightarrow s=\frac{v^2-u^2}{2a}\\\Rightarrow s=\frac{8.98^2-0^2}{2\times 9.81}\\\Rightarrow s=4.11\ m

v=u+at\\\Rightarrow v=8.98+9.81\times 0.125\\\Rightarrow v=10.21\ m/s

If the upward flight is an exact reverse of the downward flight then the time taken while going down will be 1 second and going up will be 1 second.

s=ut+\frac{1}{2}at^2\\\Rightarrow s=10.21\times 1+\frac{1}{2}\times 9.81\times 1^2\\\Rightarrow s=15.115\ m

Hence total height of the building is 4.11+1.2+15.115 = 20.425 m

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Which equation represents a line which is parallel to the line y=8/5x−1?
Murljashka [212]

Answer:

y=8/5x+2

Step-by-step explanation:

if parallel, the slopes should be the same

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What is the x intercept of the function​
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Step-by-step explanation:

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What is inequalition of (2x+47)=6y
nevsk [136]

Answer:

y = 1/3x + 7\frac{5}{6}

Step-by-step explanation:

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