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Artyom0805 [142]
3 years ago
8

PLEASE HELP!!! Use the Quadratic function to predict f(x) if x equals 8

Mathematics
1 answer:
victus00 [196]3 years ago
7 0

f(8) = 25 {(8)}^{2}  - 28(8) + 585 \\  = 1600 - 224 + 585 \\  = 1961
C. f(8) = 1961
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n = 0

Step-by-step explanation:

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Step-by-step explanation:

A) A fórmula para calcular o perímetro de um retângulo é dada como:

Perímetro de um retângulo = 2 (L + W)

= 2L + 2W

Onde

L = comprimento do retângulo

W = largura do retângulo

A) A pergunta nos diz que:

O comprimento de um retângulo é 6x e sua largura é 5y.

A expressão algébrica que representa o perímetro do retângulo =

Perímetro de um retângulo = 2 (L + W)

= 2L + 2W

L = 6x, W = 5y

= 2 (6x) + 2 (5y)

= 12x + 10y

A expressão algébrica que representa o perímetro do retângulo é

P = 12x + 10y

B) Se x = 4 cm e y = 7 cm, qual é o valor numérico desse perímetro.

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y = 7cm

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substitute

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C=56 \pi\ ft

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