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1 answer:
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Write the equation of the first train: x = 12t
Write the equation of the second train: y = -20t+72, assuming the train one is at the origins when t = 0.
Now solve the equation: 12t=-20t+72,
32t = 72, then t = 2.25 hours. The two train meet after 2.25 hours.
Now the equation of the <span>pigeon is like this: x = 48t.
</span>Then for t = 2.25, we get
<span>The Hyde has flown 108 km when the trains meet.</span>
Write the equation of the second train: y = -20t+72, assuming the train one is at the origins when t = 0.
Now solve the equation: 12t=-20t+72,
32t = 72, then t = 2.25 hours. The two train meet after 2.25 hours.
Now the equation of the <span>pigeon is like this: x = 48t.
</span>Then for t = 2.25, we get
<span>The Hyde has flown 108 km when the trains meet.</span>
Answer:
Step-by-step explanation:
Assuming that the metal frame is a square metal frame because the length of the side of the metal frame is given.
Given:
Radius of the mirror = 2x unit
Side length of the square metal frame = 12x unit
We need to find the area of the metal frame.
Solution:
First we find the area of the circular mirror, using area formula of the circle.
Where, r = Radius of the object.
Substitute r = 2x in above equation.
Now, we find the area the square, using area formula of the square.
So, the area of the square metal frame is given as
Therefore, the area of the metal frame is .