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3 years ago

Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations

Mathematics

1 answer:

Anton [14]3 years ago

7 0

Answer:

Option C. (-1,2,4)

Step-by-step explanation:

Please, see the attached file.

Thanks.

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Match each inequality to the number line that represents its solution

vlada-n [284]

the first one that is x-99....... goes to the second answer box

the second that is x-51......... goes to the first answer box

the third that is 150+x......... goes to the fourth answer box

the fourth that is 69-x......... goes to the third answer box

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3 years ago

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Simplify: 675 ÷ (6 + 9 ÷ 3)

Afina-wow [57]

The answer is 111.5 :) :-)

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3 years ago

F:x→(x+1/x+3), x≠3 and g:x→（6/x-2), x≠2, find f²(4) and g²(1/2)

Sveta_85 [38]

Answer:

$f^2(4) = (\frac{25}{49})\\g^2(\frac{1}{2} ) = 16$

Step-by-step explanation:

Here, given:

$f(x) = (\frac{x+1}{x+3} ), g(x) = (\frac{6}{x-2} )$

Now, here to find the values of $f^2(4), g^2(\frac{1}{2})$

As we know: $f^n(x) = (f(x))^n$

Now, substituting x = 4 in f(x):

$f(4) = \frac{4 +1}{4+3} = \frac{5}{7} \\\implies f^4 = (f(4))^2 = (\frac{5}{7} )^2 = \frac{25}{49} \\\implirs f^{(4)} = ( \frac{25}{49})$

Now, substituting x = 1/2 in g(x):

$g(\frac{1}{2} ) = \frac{6}{\frac{1}{2}-2} = \frac{6}{-\frac{3}{2}} \\\\ g(\frac{1}{2} ) = -6\times (\frac{2}{3} ) = -4\\\implies g^2{(\frac{1}{2}) = ( g(\frac{1}{2} ))^2 = (-4 )^2 =16 \\\\\implies g^2{(\frac{1}{2}) = 16$

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3 years ago

Which equation best describes the graph?

Musya8 [376]

Answer:

Step-by-step explanation:

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4 years ago

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Which of the following best describes algebraic expression 10 X +2

sp2606 [1]

Answer:

The answer is basically just 10 times whatever x is, plus 2. For an example, if x was 5, than the answer would be 52 because 10 times 5 plus 2 is 52.

Step-by-step explanation:

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3 years ago