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3 years ago

Plz Ans my question its urgent

Mathematics

1 answer:

Mamont248 [21]3 years ago

8 0

Box 1

x - y = 4

x - 0 = 4

x = 4

Box 2

x = 4

y = 0

(x, y) => (4, 0)

Box 3

x - y = 4

-1 - y = 4

-y = 4 + 1

y = -5

Box 4

x = 0

y = -4

(x, y) => (0, -4)

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Which of the following is a solution to<br> the equation 0 = x2 – 8x – 13?

Fed [463]

Answer:

x= 32 ± √29

Step-by-step explanation:

x² - 8x - 13 = 0

ax² + bx + c = 0

Comparing equations we get,

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Using quadratic formula,

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Hope this answer helps you....

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4 years ago

Blake is paid $8.75 an hour. He worked 6 hours and spent 1 5 of his pay on a book. How much money did he have after he paid for

jek_recluse [69]

Answer: $42

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3 years ago

What is 2fifth times 6seventh

Rama09 [41]

Answer:

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8 0

3 years ago

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Serhud [2]

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4 0

3 years ago

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The cost function for a certain company is C = 20x + 700 and the revenue is given by R = 100x − 0.5x2. Recall that profit is rev

Sladkaya [172]

Answer:

The two values of production level are:

x = 20

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Step-by-step explanation:

Let's write the Profit equation by subtracting the cost function from the revenue one:

$Profit(x)=100\,x-0.5\,x^2-(20\,x+700)\\Profit(x)=-0.5\,x^2+80\,x-700$

Now, we set to find the production level "x" to give us a profit of $ 700:

$Profit(x)=-0.5\,x^2+80\,x-700\\700=-0.5\,x^2+80x-700\\0.5\,x^2-80\,x+1400=0$

So we solve this quadratic equation using the quadratic formula:

$x=\frac{80+/-\sqrt{80^2-4(0.5)(7700)}}{2\,*\,0.5} \\x=80+/-\sqrt{3600} \\x=80\,+/-\,60$

which gives two posible solutions: x = 20, or x = 140

6 0

4 years ago

Plz Ans my question its urgent​

Plz Ans my question its urgent