This expression is a difference of squares: 
Simplify the product using the distributive property.
1 answer:
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Answer:
As only the length of the room changed. It means the length of the room is increased by 175%, because of which the area is increased by 175%.
Therefore, the expression become
And the area of Megan's room is increased by 0.75 square meters.
Step-by-step explanation:
- Let
be the length of the room
- Let
be the width of the room
So the area of the rectangle will be:
As the statement mentions that the new area of the room is % of the previous area.
So the new area of the room becomes:
As only the length of the room changed. It means the length of the room is increased by 175%, because of which the area is increased by 175%.
Therefore, the expression become
also
so, the area of Megan's room is increased by 0.75 square meters.
Try this option:
1. the sides of the biggest triangle are 16; x and √(16²-x²); the sides of the smallest triange are x;5 and y. The smallest triangle ~ the biggest triangle. Using the property of the similar triangles:
2. according to the Pyphagorean theorem (in the smallest triangle):
answer: y=√55.
1. the sides of the biggest triangle are 16; x and √(16²-x²); the sides of the smallest triange are x;5 and y. The smallest triangle ~ the biggest triangle. Using the property of the similar triangles:
2. according to the Pyphagorean theorem (in the smallest triangle):
answer: y=√55.