3 years ago

SOLVE FOR BRAINLIST!!

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

6 0

The correct answer is c

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The roots of 2x^{2} + 3x = 4 are α and β. Find the simplest quadratic equation which has roots <img src="https://tex.z-dn.net/?f

elena-s [515]

$2x^2+3x=4\implies2x^2+3x-4=0\implies x=\dfrac{-3\pm\sqrt{41}}4$

Let $\alpha$ be the root with the positive square root and $\beta$ the root with the negative square root. Then

$\dfrac1\alpha=\dfrac4{-3+\sqrt{41}}\quad\text{and}\quad\dfrac1\beta=\dfrac4{-3-\sqrt{41}}$

The simplest quadratic with these roots can be written as

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4 years ago

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serg [7]

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( negative infinity, infinity)

Step-by-step explanation:

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3 years ago

Identify the statement as true or false.

svp [43]

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Integer are set of positive numbers, negative numbers and zero but not fractions.

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3 years ago

The grades for 200 students at a middle school are represented in the graph below how many more students earned Cs then Ds

Xelga [282]

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B. 60

Step-by-step explanation:

There are a total of 200 students here, and 45% got Cs, to find how many got Cs, multiply 200 by 45%, or 0.45: 200*0.45 = 90, 90 people got Cs.

15% got Ds, multiply 200 by 15%, or 0.15 to get 30, 30 got Ds

The amount who got Cs minus the amount who got Cs is 90 - 30 = 60, 60 more students got Cs than Ds

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