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damaskus [11]
3 years ago
5

Once Jeremy is on the fire escape he runs 2 feet to the staircase. He then runs across the width of the building. Which of the f

ollowing equations will allow you to solve for the distance he runs up the stairs?
a. 4 + x2=52
b.5-42=x2
c.5+x2=42
d. 4 +52=x2 please help !! this is for geometry

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
4 0
<h3>Answer: Choice D.  4^2+5^2 = x^2</h3>

See note at the bottom

========================================================

The entire building is 20 feet. Fifteen feet of that is from the ground to the first landing of the stairs or fire escape. So 20-15 = 5 feet represents the height of the second set of stairs (leading to the roof of the building)

The base of the triangle is 4 feet as shown in the diagram. The height is 5 feet as found in the prior paragraph. Use the pythagorean theorem to say

a^2 + b^2 = c^2

4^2 + 5^2 = x^2

Note: If you meant to write 4^2+5^2 = x^2 for choice D, then that would be the answer. Otherwise, there is a typo somewhere.

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