Your friend is looking at laptops for college, and is comparing the different screen sizes. Use the diagram and formula below to
find the width of the laptop screen. Round your answer D= W^2+H^2
(The image of the figure is a rectangle in half, the top side is D= 17inch the H= 9inch, W is blank)
Mutiple choices are
A. W= 16.7 inch
B. W= 9.9 inch
C. W= 8 inch
D. W= 14.4 inch
For this case what we should do is write correctly the given equation: D ^ 2 = W ^ 2 + H ^ 2 We substitute the values: D = 17inch H = 9inch Substituting: 17 ^ 2 = W ^ 2 + 9 ^ 2 We clear the value of W: W = root (17 ^ 2 - 9 ^ 2) W = 14.4 inch Answer: The width of the laptop screen is: D. W = 14.4 inch
