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andreyandreev [35.5K]
2 years ago
9

What error did Maria likely make?

Mathematics
1 answer:
raketka [301]2 years ago
7 0
She didn’t notice that the 3 and the 4 both do not have the variable “n” with them
She just added up all the numbers together then added the variable at the end.
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Find the value of 3 + 5 × (2 − 1).
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Step 1 (simplify): 
3+5x(2-1)
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Step 2 (solve):
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8 is your answer. Hope this helps :)
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Find the dimensions of a deck which will have railings on only three sides. There is 28 m of railing available and the deck must
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Answer:

The largest possible area of the deck is 87.11 m² with dimensions;

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Step-by-step explanation:

The area of a given dimension increases as the dimension covers more equidistant dimension from the center, which gives the quadrilateral with largest dimension being that of a square

Given that the railings will be placed on three sides only and the third side will cornered or left open, such that the given length of railing can be shared into three rather than four to increase the area

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The sides of the formed square area by sharing the railing into three while the fourth side is left open are then equal to 28/3 each

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Width = 28/3 m = 9.33 m

Breadth = 28/3 m = 9.33 m.

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The answer to this one is d
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