3 years ago

Which is the best estimate for this expression ?a) 300 b) 40c) 3d)0.4

1 answer:

Zolol [24]3 years ago

5 0

Answer:

Step-by-step explanation:

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zvonat [6]

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3 years ago

QveST [7]

The higer discount is 7-6-4.

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3 years ago

UNO [17]

Add the x to both sides and it turns into Y = x + 4. If this isn't what you're looking for, please provide the answer choices.

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3 years ago

denpristay [2]

Answer:

Her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

Step-by-step explanation:

Total distance covered in one round , D= 400 m

Time taken to cover one round , T = 1 min 40 s = 100 sec

Speed of runner , $V=\frac{D}{T}=\frac{400}{100}\, \frac{m}{s}= 4.0\, \frac{m}{s}$

Now centripetal acceleration is given by

$a_c=\frac{V^{2}}{R}$

where $V= 4.0\frac{m}{s}$

$Radius, R= \frac{Diameter}{2}=\frac{74}{2}m=37\, m$

$\therefore a_c=\frac{4^{2}}{37}\, \frac{m}{s^{2}}=0.432\, \frac{m}{s^{2}}$

Thus her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

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3 years ago

Artyom0805 [142]

Answer: c

Step-by-step explanation:

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2 years ago

Which is the best estimate for this expression ?a) 300 b) 40c) 3d)0.4​