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3 years ago

Solve the system.

Mathematics

2 answers:

scoray [572]3 years ago

3 0

System: 2x + y = -3, -2y = 6 + 4x

We can solve it through elimination

-2y = 6 + 4x, y = -3 - 2x --> multiply the second equation by 2 -->

-2y = 6 + 4x, 2y = -6 - 4x --> add these two equations together -->

0 = 0: All real solutions

Slope intercept form (y = mx + d):

2x + y = -3 -->Subtract 2x--> y = -2x - 3

-2y = 6 + 4x --> Divide by -2 --> y = -3 - 2x --> y = -2x - 3

alexandr1967 [171]3 years ago

3 0

Answer: y= -2x+3

Y= -2x+-3

Step-by-step explanation:

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Whats the sets of a function

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Answer:

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Step-by-step explanation:

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3 years ago

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hoa [83]

Answer:

D

Step-by-step explanation:

When the denominator is equal to 0, the function doesn't exist. So factor the bottom, luckily its already partially factored.

(x^2 + 8x + 12) = (x+2)(x+6)

So now the denominator is (x+2)(x+6)(x-3)

The function doesn't exist when x = -2, -6, 3

Now we know there are 3 total discontinuities.

A and B can be eliminated

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3 years ago

Read 2 more answers

Simplify 15 - 12 - 8 + 4 - 6 + 1

Alex Ar [27]

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3 years ago

Convert €3.2 per kilogram to unit price dollars per pound

MatroZZZ [7]

We get 1.45 dollars per pound when we convert 3.2 Euros per kilogram to dollar per pound.

According to the question,

We have the following information:

3.2 Euros per kilogram

We need to convert its units into dollars per pounds.

We know that 1 Euro is approximately equal to 1 US dollar and 1 kilogram of weight is equal to 2.205 pounds.

(Note that there are various conversions from Euro to dollars which have 1 Euro equal to 1.00755 and many other values. In this case, we have rounded it off to 1 to avoid any confusion.)

(We know that per means the unit given is in divide.)

So, we have:

(3.2*1)/(1*2.205)

3.2/2.205

1.45 dollar per pounds

Hence, the conversion to dollars per pounds is 1.45 dollar per ponds from Euros per kilogram.

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2 years ago

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Svetlanka [38]

Answer:

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