Mathematics
07.03.2022 12:40
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1) The sum of a number and its square is 56. What is the number? 2) The width of

1) The sum of a number and its square is 56. What is the number?
2) The width of a rectangle is 5 mm shorter than its length. If the area is 300 mm?, what are the
dimensions of the rectangle?

plz halp
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bryan1528489
bryan1528489
5,0(80 marks)

The answer i got is in the image below


The function f is defined by f(x)=x^2-6x+21

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