3 years ago

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Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

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50 minutes has elapsed.

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Ne4ueva [31]

Answer:

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3 years ago

a painter uses 4 gallons of paint to paint each apartment in a building. if the painter has 45 gallons of paint, how many apartm

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Step-by-step explanation:

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3 years ago

What types of solutions will a quadratic equation have when the discriminant b2 − 4ac in the quadratic formula is a perfect squa

netineya [11]

<em>The discriminant must be zero.</em>

Step-by-step explanation:

A Perfect-Square Trinomial is given by the form:

$(\alpha x \pm \beta)^2=(\alpha^2x^2 \pm 2\alpha x \beta + \beta^2)$

The discriminant in the quadratic formula is:

$\Delta=b^2-4ac \\ \\ \\ Here: \\ \\ a= \alpha^2 \\ \\ b=2\alpha \beta \\ \\ c=\beta^2 \\ \\ \\ So: \\ \\ \Delta=(2\alpha \beta )^2-4(\alpha^2)(\beta^2) \\ \\ \Delta=4\alpha^2 \beta^2-4\alpha^2 \beta^2=0$

So in order to get a perfect square,<em> the discriminant must be zero.</em>

<h2>Learn more:</h2>

Discriminant: brainly.com/question/1537997

#LearnWithBrainly

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3 years ago

Luis has a cooler filled with cans of soda.For every 5 cans of coke there are 3 cans of sprite.If there are 25 cans of coke, how

julia-pushkina [17]

Answer: its 10 sprite cans!

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