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3 years ago

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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How many people do you need to switch a lightbulb?

kondaur [170]

Answer:

Just one.

Step-by-step explanation:

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3 years ago

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I know the first one is right but id k if any of the other ones are

mario62 [17]

I think it the 3 and 4 one ... sorry if I’m wrong

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3 years ago

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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.

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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

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4 years ago