Answer:
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Step-by-step explanation:
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40 - x^2 = 0
x^2 = 40
x = + 40^0.5 or x = - 40^0.5
Answer:
the width of the rectangle is 7 inches
Step-by-step explanation:
The answer is 36.
Because 20% of 36 is equal to 7.2
And 36 - 7.2 = 28.80