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trapecia [35]
3 years ago
10

I need help man

Mathematics
1 answer:
solong [7]3 years ago
4 0

Answer:

65x + y = 60

Step-by-step explanation:

hope it will help you

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Answer:

Just one.

Step-by-step explanation:

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I know the first one is right but id k if any of the other ones are
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I think it the 3 and 4 one ... sorry if I’m wrong
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The daily profit P ​(in thousands of​ dollars) from the sale of televisions is a function of the number x of televisions sold ​(
scZoUnD [109]

Answer:

The break-even sales amounts​ is 36 or 224.

Step-by-step explanation:

Consider the provided function.

P= -5x^2 + 13x - 4

Where x is the number of televisions sold (in hundreds) and P is the profit.

We need to calculate the break-even sales amounts​.

the​ break-even sales amounts​ is the sales amounts that result in no profit or​ loss.

That means substitute P=0 and solve for x.

-5x^2 + 13x - 4=0

5x^2-13x+4=0

\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Substitute a=4, b=-13 and c=4 in above formula.

x_{1,\:2}=\frac{-\left(-13\right)\pm \sqrt{\left(-13\right)^2-4\cdot \:5\cdot \:4}}{2\cdot \:5}

x_{1,\:2}=\frac{13\pm\sqrt{169-80}}{10}

x_{1,\:2}=\frac{13\pm\sqrt{89}}{10}

x=\frac{13+\sqrt{89}}{10},\:x=\frac{13-\sqrt{89}}{10}\\x\approx2.243, \ or\ x\approx 0.357

Therefore, the break-even sales amounts​ is 36 or 224.

7 0
3 years ago
Solve for the letter A
Vinvika [58]

Answer:

a=bcd

Step-by-step explanation:

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4 years ago
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How do you identify the slope and y intercept with the equation y =2x
maxonik [38]

The slope will be the one next to the variable which in this case is (x) so the slope is 2 and the y-intercept is the + added to the equation in this equation there is none.

Slope= 2

Y-Intercept= None

3 0
4 years ago
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