A 5 cm x 6 cm x 7 cm cuboid.Calculate the length of the diagonal AB.
1 answer:
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Answer:
x = 6
Step-by-step explanation:
<em>Let's solve y for x + 2y = 8.</em>
x + 2y = 8
2y = -x + 8
y = x + 4.
<em>Let's solve y for x - y = 5.</em>
x - y = 5
y = x - 5
<em>Since both equations have been solved for y, we can combine them together into one!</em>
x - 5 = x + 4
x x = 4 + 5
1.5x = 9
x = 6
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