What is the image of (3, -12) after a dilation by a scale factor of į centered at the origin?
1 answer:
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Step-by-step explanation:
Given that,
The hypotenuse of a right triangle is 15 cm
Let x is the length of the other leg. So, the length of the first leg is 2x.
Using Pythagoras theorem for the right angle triangle such that,
hypotenuse² = base²+height²
Let base is x and height is 2x
So,
Hence,
Base =
Height =
Hyoptenuse = 15 cm (given)
If we call the cost C then Cecil has to mark the product up 40% of C. That means he needs to charge the whole cost (100%) + 40% of the cost.
That is 140% of C. This amount needs to be $20.
In an equation we have 140% of C which can be written
set equal to $20. We solve for C which is the cost or what Cecil should pay for a hat.
This is a proportion so we cross-multiply to solve:
C=$14.29
That is 140% of C. This amount needs to be $20.
In an equation we have 140% of C which can be written
This is a proportion so we cross-multiply to solve:
C=$14.29