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silentlotusalex6284
01.07.2019 •
Mathematics
Last one i need with to move on! i have a pic of the question
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Ответ:
length = 4 yards and width = 3.5 yards
let width be w then length is 2w - 3
area = w(2w - 3) = 14 (rearrange in standard form )
2w² - 3w - 14 = 0 ← in standard form
(2w - 7 )(w + 2 ) = 0 ← in factored form
equate each factor to zero and solve for w
2w - 7 = 0 ⇒ w = 3.5
w + 2 = 0 ⇒ w = - 2
but w > 0, hence w = 3.5
width = 3.5 yards and length = (2 × 3.5 ) - 3 = 4 yards
Ответ:
First you multiply them like normal numbers
24
x
62
48
+
1440
1488
then you notice that the decimal point was moved over two, then you do that to your answer
1488.0=1488
1488.0
148.80
14.88