Please help I’ll give brainiest!!

Mathematics

1 answer:

slava [35]3 years ago

8 0

Answer:

100%

Step-by-step explanation:

A. is correct -3/4

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A fulcrum moving a resistance of 200 g has a distance to the fulcrum of 20 cm, the effort mass of 50 g has a distance to the ful

S_A_V [24]

Answer:

The ideal mechanical advantage (IMA) is $4$ .

Step-by-step explanation:

The ideal mechanical advantage is the ratio of length of longer lever $L_e$ to that of shorter lever $L_r$

IMA $\frac{L_e}{L_r}$

Please refer to the image attached.

We could see that the the resistance load moves $10\ cm$ cm towards the fulcrum so the distance of resistance load from fulcrum $= (20-10) =10\ cm$

Now the as the effort force moves $40\ cm$ towards the fulcrum overall distance from the fulcrum to the effort force (load) $=(80-40)=40\ cm$

Plugging the values of the distances in IMA formula we can have.

IMA $=\frac{(80-40)}{(20-10)} =\frac{40}{10} =4$ .

So the IMA of the fulcrum (simple machine) $= 4$

3 0

4 years ago

PLEASE HELP AND FAST I WILL GIVE BRANILYEST AND 12 POINTS:Which situation shows independent events? A. Leah schedules an appoin

never [62]

Your answer will be B.

Its B because she does not change or will not change what the other person can or cannot draw.

Because she is putting the card back it does not affect the outcome or the result in which the person who is drawing or picking the next card from the deck.

Hope this helped!

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6 0

3 years ago

He completed 2 and 4/5 rows of grapes each hour he worked after completing 140 rows of grapes how many hours had he worked?

algol [13]

Step-by-step explanation:

Divide 140 by $2\frac{4}{5}$ to represent the amount of hours he worked.