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3 years ago

Please help me with my homework I need to submit it tomorrow on tuesday

Mathematics

1 answer:

otez555 [7]3 years ago

3 0

1. Yes
2. No
3. 46.6 (recurring)
5. 22'
Sorry this is all I can do. Hope this helps :)

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Solve 3x² + 4x = 2. (2 points)

uysha [10]

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are $x_1$ and $x_2$ .

The famous quadratic formula for solving any second order equation is the following:

$x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}$

Where a is the coefficient of $x^2$ , b is the coefficient of x, and c is the free term. In other words,

$a = 3\\b=4\\c=-2$

as the equation should be in the following form:

$a x^2 + bx+c = 0$

Therefore the possible answer should be the following,

$\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}$ $\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}$

by dividing the numerator and denominator by 2, we can deduce the following,

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2 years ago

a student athlete runs 3 1/3 miles in 30 minutes a professional Runner can run one and one fourth times as far in 30 minutes how

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8 4/5 - 5 1/10 <br> Please Help

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Answer:

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Step-by-step explanation:

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Mario started with a zero balance on his library account. A book he borrowed was 7 days overdue, and he was charged $0.25 per da

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Answer:

Step-by-step explanation:

If mario gains 25 cents per day and he is seven days overdue, we would do 7 days times 25 cents, the money he gains everyday, that should equal 1.75

:3 happy to help!

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14.2857142857 is th e answer

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