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3 years ago

Is (4,2) a solution of the system?

Mathematics

2 answers:

Triss [41]3 years ago

7 0

Answer:

Step-by-step explanation:

Plug x as 4 and y as 2.

2 = 4 - 2

2 = 2 <em>True</em>

2 = 3(4) + 4

2 = 12 + 4

2 = 16 <em>False</em>

lara [203]3 years ago

3 0

Answer:

No.

Step-by-step explanation:

Substitute 4 (as x) and 2 (as y) into the 2 equations to see if they fit.

y = x - 2

2 = 4 - 2

2 = 2

The first equation is true for (4,2).

Now try the 2nd one.

y = 3x + 4

2 = 3(4) + 4

2 ≠ 16

So the 2nd equation is not true for (4,2).

Either one not true makes the solution incorrect.

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Mateo is training for a race. On Monday Mateo ran 7/10 mile. On Tuesday Mateo ran 9/10 mile. how much farther did Mateon run on

Valentin [98]

Answer:

$\frac{1}{5}$

Step-by-step explanation:

$\frac{9}{10} -\frac{7}{10} =\frac{2}{10} =\frac{1}{5}$

4 0

2 years ago

Solve for x: 3-x = 3(6x-9). Describe the process used to solve the equation and show each step.

FromTheMoon [43]

Answer:

$x=1.578$

Step-by-step explanation:

Given equation is $3-x = 3(6x-9)$

We need to find the value of $x$

$3-x = 3(6x-9)$

Distribute $3$ in the right-hand side

$3-x=18x-27$

Add both sides $x$

$3-x+x=18x+x-27\\3=19x-27$

Now, add both sides $27$

$3+27=19x-27+27\\30=19x$

Divide both sides by $19$

$\frac{30}{19}=\frac{19x}{19}\\x=1.578$

So, $x=1.578$

5 0

2 years ago

What are the factors to the equation 4x2-52x + 169 121? A 4(x-1)(x+12) B 4(x + 1)(x - 12) C. 4(x + 1)(x+12) D. 4(x-1)(x - 12)

Bingel [31]

The given equation is,

$4x^2-52x+169=121$

Simplifying the above equation,

$\begin{gathered} 4x^2-52x+169-121=0 \\ 4x^2-52x+48=0 \end{gathered}$ $\begin{gathered} 4x^2-13\times4x+4\times12=0 \\ 4(x^2-13x+12)=0 \\ 4(x^2-12x-1x+12\times1)=0 \\ 4(x(x-12)-1(x-12))=0 \\ 4(x-12)(x-1)=0 \end{gathered}$

Therefore, the factors of the given expression is 4(x-1)(x-12).

5 0

8 months ago

PLZ HELP This is due today and if I don’t finish I fail

valentinak56 [21]

Answer:

The solution ( 12,6) is correct, Lizette's solution

7 0

3 years ago

Read 2 more answers

If you vertically stretch the exponential function f(x)=2^x by a factor of 3 what is the equation of the new function

Mademuasel [1]

The new equation will become f(x) = 3( $2^{x}$ ).

The given information is the stretch factor which is 3 and the equation f(x)= $2^{x}$ .

When there is a vertical strecth factor, you need to multiply the equation by the stretch factor.

By stretching the function, the value of y has to be multiplied by 3, will now be equal to 3f(x)

The new equation will become f(x) = 3( $2^{x}$ ).

To learn more about the stretching of function visit: brainly.com/question/4263889

#SPJ4

6 0

1 year ago