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Alja [10]
3 years ago
11

The question is.......

Mathematics
2 answers:
Marianna [84]3 years ago
7 0
Since 5*6 = 30 and 3^2*3.14=9*3.14=28.26 and 30 + 28.26 = 58.26 the answer is 58.26.
Sholpan [36]3 years ago
6 0
The answer is 44.13.  This is because the area of a semi cicle is .5*3.14*r^{2}.  And the area of a rectangle is L*W.  All you have to do is add the two together.  
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zhannawk [14.2K]

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Step-by-step explanation:

We want to solve this equation: 2x^2 + 12x - 7 = 0

On observation, the trinomial is not factorizable so we use the Completing the square method.

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2x^2 + 12x - 7+7 = 0+7\\2x^2 + 12x=7

Step 2: Divide the equation all through by the coefficient of x^2 which is 2.

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