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4 years ago

Evaluate (mn)(x) for x= -3

Mathematics

2 answers:

Aneli [31]4 years ago

7 0

M=-3 over nx squared

OLEGan [10]4 years ago

3 0

Answer:

the first one is 9

the second is 0

the third is 1

Step-by-step explanation:

just did it

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If a cordinate set (x,y) has two different scale factors this is a valid transformation..

mafiozo [28]

I’m going to say A.yes but I’m not sure sorry.

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3 years ago

What is true about the solution above.

Masja [62]

ANSWER

$x = \pm \sqrt{3}$

and they are actual solutions.

EXPLANATION

The given equation is:

$\frac{ {x}^{2} }{2x - 6} = \frac{9}{6x - 18}$

Cross multiply

${x}^{2} (6x - 18) = 9(2x -6 )$

This implies;

${x}^{2} (6x - 18) - 9(2x - 6) = 0$

$3{x}^{2} (2x - 6) - 9(2x - 6) = 0$

Factor

$(3 {x}^{2} - 9)(2x - 6) = 0$

$3 {x}^{2} - 9 = 0 \: or \: 2x - 6= 0$

$3 {x}^{2} = 9 \: or \: 2x = 6$

${x}^{2} = 3\: or \: x = 3$

${x} = \pm \sqrt{3} \: or \: x = 3$

The domain of the given equation is

$x \ne3$

Therefore the actual solutions are

$x = \pm \sqrt{3}$

NB: x=3 is not in the domain of the given equation. It cannot be an extraneous solution.

7 0

3 years ago

(02.01 LC)

denis-greek [22]

Answer:

Step-by-step explanation:

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3 years ago

(x + 2) + (x + 2) + (x + 4) + (x + 4)

Dovator [93]

Answer:

4x+12

Step-by-step explanation:

(x+2)+(x+2)=2x+4

(x+4)+(x+4)=2x+8

(2x+4)+(2x+8)=4x+12

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4 years ago

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A number y is 5 times the value of a number x. A line graphed in a coordinate plane represents the relationship between x and y.

VLD [36.1K]

Answer:

Step-by-step explanation:

If we know that y is 5 times x then we can say for everytime x goes up 1, y goes up 5.

Which comes to the slope of 5/1 which can be simplified to just 5.

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3 years ago

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