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Dafna1 [17]
2 years ago
8

If x = -1 what is the value of y in the equation? y = 8x3 + 12x2 - 6x - 3

Mathematics
1 answer:
OLEGan [10]2 years ago
6 0

Answer:

y=7

Step-by-step explanation:

x = -1 x is one , replace x with negative one in the equation. using the order of operation PEMDAS.

Remember this -1³= -1×-1×-1=-1

-1²=-1×-1=1.

y =8x³+12x²-6x-3

y= 8(-1)³+12(-1)²-6(-1)-3

<h3>Exponents</h3>

y= 8(-1)+12(1)-6(-1)-3

<h3>Multiplication</h3>

y= -8+12+6-3

<h3>Addition</h3>

y= 10-3

<h3>Subtraction</h3>

y= 7

<h3>Therefore y= 7</h3>
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Which of these pairs of costs and revenues could a company have if it's at its<br> break-even point?
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Answer:

At break even cost = revenue

Step-by-step explanation:

A company is said to be at break even if the cost of producing an item is equal to the revenue generated from the sell of that item, that means there is no loss or gain.

If the cost function C(x) = 200 + 10x and the revenue function R(x) = 60x - x², where x is the amount of items produced. At break even, R(x) = C(x)

60x - x² = 200 + 10x

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4 years ago
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pochemuha
Factor 2 out of 4x+14
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3 years ago
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Are the equations m+ 3 = -5 and m = -2 equivalent? Explain.
Agata [3.3K]
*Answer:*

no.

*step-by-step solution:*

m + 3 = -5 || m = -2

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