3 years ago

Answer please I need the help lol so as soon as possible will be great! Thanks!

Mathematics

2 answers:

Vikentia [17]3 years ago

6 0

Answer:

pretty sure it's irrational numbers

SVEN [57.7K]3 years ago

5 0

Answer: the answer is whole numbers

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Mario has a business selling muffins. Let x be the price of a muffin. Then, the profit P for Mario’s business is given by p(x)=-

Rufina [12.5K]

To make a positive profit p(x)>0 we need to make:
$-100 x^{2} +350x-150 \ \textgreater \ 0$

Now we solve this for x:
$-2 x^{2} +7x-3 \ \textgreater \ 0$

We have:
a = -2
b = 7
c = -3

We will use formula for quadratic equation:
$x_{1} = \frac{-b+ \sqrt{ b^{2}-4ac } }{2a} \\ \\ x_{2} = \frac{-b- \sqrt{ b^{2}-4ac } }{2a} \\ \\ x_{1} = \frac{-7+ \sqrt{ 49-24 } }{-4} = \frac{-7+5 }{-4} = \frac{-2 }{-4} = \frac{1}{2} \\ \\ x_{2} = \frac{-7- \sqrt{ 49-24 } }{-4} = \frac{-7-5 }{-4} = \frac{-12 }{-4} = 3$

We got two solutions. One is fraction other is whole number. We will not consider fraction because the amount of muffins sold must be whole number. So our solution is:
x>3

5 0

3 years ago

Read 2 more answers

Factor the polynomial completely. 4x3 – 12x2 + 7x – 21 4x2(x – 3) + 7(x – 3) which is the completely factored polynomial?

Brilliant_brown [7]

4x^3-12x^2+7x-21=(x-3)(4x^2+7)

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3 years ago

Express 24/40 and 18/42 in their simplest forms.Show your works

Maru [420]

Answer:

24/40 = 4/5