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3 years ago

How many solutions exist for the system of equations graphed below

2 answers:

5 0

The number of solutions that exist for the system of equations is equal to the number of independent linear equations that consist the matrix. For example, in order to find the values of two independent variables, then we have to provide two independent equations according to law of degree of freedom.

tatiyna3 years ago

5 0

Answer:

Which point is in the solution set of the given system of inequalities?

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Step-by-step explanation:

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PLEASE HELP! 15 POINTS TO BRAINLIEST!!!

Semenov [28]

first one no second one no third one no frouth no fifth yes last one no

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3 years ago

Plss answer!! MERRY Christmas!!! Critical Question. AAAAA

liberstina [14]

Answer:

Step-by-step explanation:

abc = 1

We have to prove that,

$\frac{1}{1+a+b^{-1}}+\frac{1}{1+b+c^{-1}}+\frac{1}{1+c+a^{-1}}=1$

We take left hand side of the given equation and solve it,

$\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+\frac{1}{c}}+\frac{1}{1+c+\frac{1}{a}}$

Since, abc = 1,

$\frac{1}{c}=ab$ and c = $\frac{1}{ab}$

By substituting these values in the expression,

$\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+\frac{1}{c}}+\frac{1}{1+c+\frac{1}{a}}=\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+ab}+\frac{1}{1+\frac{1}{ab}+\frac{1}{a}}$

$=\frac{b}{b+ab+1}+\frac{1}{1+b+ab}+\frac{ab}{ab+1+b}$

$=\frac{1+b+ab}{1+b+ab}$

$=1$

Which equal to the right hand side of the equation.

Hence, $\frac{1}{1+a+b^{-1}}+\frac{1}{1+b+c^{-1}}+\frac{1}{1+c+a^{-1}}=1$

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3 years ago

Inessa is making ice tea. She has ice cubes which she uses to cool the ice tea. Each ice cube lowers the temperature of the liqu

uranmaximum [27]

Answer:

-12

Step-by-step explanation:

6 times -2 is -12.

_____

"Lowers by 2°" can be represented by an integer of -2.

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3 years ago

how much water should be mixed with 6 gallons of 55% solution of sulfuric acid to make a 20% solution of sulfuric acid

nevsk [136]

Hello.

For all dilution problems use the dilution equation:
C1V1 = C2V2 
20*V1 = 6*55 
V1 = 6*55/20 
V1 = 16.5 gallons 
The final volume must be 16.5 gallons 
You must add 16.5 - 6 = 10.5 gallons water to be added.

Have a nice day

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3 years ago

What is the order of rotational symmetry of a kite? A) 0 B) 1 C) 2 D) 4

KIM [24]

The order of rotational symmetry of a kite is 1

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3 years ago