Zack rested A 15 foot ladder against a building the foot of the latter is 9 feet from the base of the building how many feet up the building does the ladder reach?

Answer 1

#12# feet

The ladder forms the hypotenuse of a right triangle, the wall one side, and the ground the third side.

One of the standard right-angled triangles has a ratio of #3:4:5#
The given triangle is simply a scaled up version of this (with a factor of #3#
That is the triangle has sides #3xx3:ul(color(red)(3xx4)):3xx5#
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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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