bemrunner bemrunner

26-05-2017
Mathematics

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Sarah’s new computer screen is 21 inches wide and the diagonal is 29 inches long. What is the height of the screen?
A.15 in
B.18 in.
C.20 in.
D.28 in.

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lolgal555 lolgal555

26-05-2017

a^2 + b^2 = c^2 (qudratic formula)
21^2 + h(height)^2 = 29^2
441 + h^2 = 841
h^2 = 400
h = 20

C

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SillyGeese SillyGeese

22-03-2021

Answer:

20 in.

This is also C

Step-by-step explanation:

Answer Link

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