3 years ago

Which expressions are equivalent to -56z+28 Choose 2 answers:

Mathematics

1 answer:

Nikolay [14]3 years ago

7 0

Answer:

28(−2z+1)

Step-by-step explanation:

Factor −56z+28

−56z+28

=28(−2z+1)

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Let the side of base is a and the height is h.

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$S = 2a^2 + 4 ah \\\\S = 2a^2 + 4 \times a \times \frac{4096}{a^2} from (1)\\\S = 2a^2 + \frac{4096}{a}\\\\\frac{dS}{da}= 4 a - \frac{4096}{a^2}\\\\4 a - \frac{4096}{a^2} = 0 \\\\a^3 = 1024\\\\a =10.1 inches$

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