The muzzle velocity of an ancient cannon was about 420ft/s. What is the cannonball's speed in miles per hour?
1 answer:
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Given:
The figure of a triangle DEF.
To find:
The coordinate of image of given triangle after reflection over y-axis.
Solution:
The vertices of given triangle are D(1,4), E(4,3), F(2,0).
If a figure is reflected over the y-axis, then the rule of reflection is
Using this rule, we get
Therefore, the coordinates of image are D'(-1,4), E'(-4,3) and F'(-2,0).
Answer:
Step-by-step explanation:
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=
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×
= (3²)² ×
=
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