2 answers:
Answer:
Step-by-step explanation:
Let the width be w centimeters.
Then the length = w + 7.
The area A is found from the length multiplied by the width.
330 = w(w + 7) = w^2 + 7w.
Now we can rearrange this equation to form a quadratic, as follows:
The factorization of the quadratic is:
(w + 22)(w - 15) = 0
Therefore we find that:
width = 15 centimeters
length = 22 centimeters
Answer:
length would be 47 or 47.1
Step-by-step explanation:
its width is 7
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Step-by-step explanation:
Answer:
f(3) = -13
Step-by-step explanation:
f(x)= - x²-4 (not (-x)²)
f(3) = - 3² - 4 = - 9 - 4 = -13
Answer:
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3^4 = 3×3×3×3 = 81
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Answer:
1/2 - 1/8= 4/8 - 1/8= 3/8
Step-by-step explanation:
hope this helps
