A model scale is 1 in. = 1.5 ft.
2 answers:
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<h2><u>AnswEr :</u> </h2>
The area of the rectangle is of the form 6x² - 9x - 15
Factoring the given expression,
Length of the rectangle is 2x - 5
Thus,
3x²+x-5=0
a = 3, b = 1, c= -5
-> ∆ ( delta ) = b²-4ac = 61 > 0
-> x1 =( -b+√∆ )÷ 2a =...
x2 = (-b-√∆)÷2a =...
p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.
