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3 years ago

9

Please answer this (question on image enclosed)

1 answer:

Anit [1.1K]3 years ago

5 0

Answer:

its 900

Step-by-step explanation:

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What value of c makes the polynomial below a perfect square? 4x2 + 12x + c?

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This is what we know:4x^2 + 12x + c = (2x + k)^2
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A = 7 and x = -5

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3 years ago

Libby needs to make 1/2 of her chili recipe for the school's chili contest. If Libby usually needs 1/2 cup of corn for her recip

Zepler [3.9K]

Answer:

She need $\frac{1}{4}$ cups of corn.

Step-by-step explanation:

Libby needs to make $\frac{1}{2}$ of her chilli recipe for the school's chilli contest. If Libby usually need $\frac{1}{2}$ cup of corn for her recipe.

She make half of her recipe

So, we can set up equation for unknown corn she need for the chilli contest as 'x' cups

$\frac{1}{0.5} =\frac{0.5}{x}$

Cross multiply

x=0.25

To make it as a fraction, she need $\frac{1}{4}$ cups of corn.

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3 years ago