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3 years ago

6

Gregory draws a scale drawing of his room. The scale that he uses is 1 cm : 4 ft. On his drawing, the room is 3 centimeters long

. Which equation can be used to find the actual length of Gregory's room?

1 answer:

Airida [17]3 years ago

7 0

3cm x 4ft. your answer should be wrote in fr

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$\boxed{\boxed{\pink{\sf Option \ A \ is \ correct .}}}$

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$\bf \implies g(x) = x^2 - 9 \\\\\bf\implies g(x) = x^2-3^2\\\\\bf\implies \boxed{\red{\bf g(x) = (x+3)(x-3) }}\:\:\bigg\lgroup \blue{\tt Using \ (a+b)(a-b) \ = a^2-b^2 }\bigg\rgroup$

I have also attached the graph of x²-9.

<h3><u>Hence </u><u>option</u><u> </u><u>A</u><u> </u><u>is</u><u> </u><u>corr</u><u>ect</u><u> </u><u>.</u></h3>

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