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3 years ago

Is the expression 3x + 2x - 4 in simplest form? Explain.

Mathematics

2 answers:

viva [34]3 years ago

7 0

Answer:

Step-by-step explanation:

you have to subtract 2x from 3x, so you have just x( you don't need the one in front of it)

So the answer would be ( x-4)

Hope that this helps you and have a great day :)

Snezhnost [94]3 years ago

5 0

Answer:

Step-by-step explanation:

No, this expression is not in simplest form

3x +2x -4

We still have like terms that can be combined.

The like terms in this case are the terms with variables, 3x and 2x

They can be added together

(3x+2x)-4

5x-4

5x-4 is the expression in simplest form

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4 years ago

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After college graduation, Mario received employment offers from two companies. The first company offered a yearly salary of $31,

Alexandra [31]

The first thing we must do for this case is to define a variable:
x: number of years
y: total salary
We have then:
For first company:
y = 1500x + 31000
For second company:
y = 2000x + 28500
Equaling both equations we have:
1500x + 31000 = 2000x + 28500
Clearing x:
2000x - 1500x = 31000 - 28500
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Answer:
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3 0

3 years ago

Hey so im also looking for the first answer and the choices were “ is not “ and “ is “

dexar [7]

so the investigator found the skid marks were 75 feet long hmmm what speed will that be?

$s=\sqrt{30fd}~~ \begin{cases} f=\stackrel{friction}{factor}\\ d=\stackrel{skid}{feet}\\[-0.5em] \hrulefill\\ f=\stackrel{dry~day}{0.7}\\ d=75 \end{cases}\implies s=\sqrt{30(0.7)(75)}\implies s\approx 39.69~\frac{m}{h}$

nope, the analysis shows that Charlie was going faster than 35 m/h.

now, assuming Charlie was indeed going at 35 m/h, then his skid marks would have been

$s=\sqrt{30fd}~~ \begin{cases} f=\stackrel{friction}{factor}\\ d=\stackrel{skid}{feet}\\[-0.5em] \hrulefill\\ f=\stackrel{dry~day}{0.7}\\ s=35 \end{cases}\implies 35=\sqrt{30(0.7)d} \\\\\\ 35^2=30(0.7)d\implies \cfrac{35^2}{30(0.7)}=d\implies 58~ft\approx d$

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3 years ago

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Mamont248 [21]

Answer:

4 14/15

Step-by-step explanation:

8 3/5 - 11/3

8 9/15 - 55/15

8 9/15 - 3 10/15

7 24/15 - 3 10/15

4 14/15

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3 years ago

Solve the following system of equations. Show all work and solutions.

Hitman42 [59]

y=2x²+6x+1
y=-4x²+1

Make the equations equal and solve for x

2x²+6x+1=-4x²+1
6x²+6x=0
6x(x+1)=0
6x=0 or x+1=0
x=0 or x=-1

For x=0

y=-4(0)+1=1

For x=-1

y=-4(1)+1=-3

The solutions are

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Graph attached

4 0

2 years ago

Is the expression 3x + 2x - 4 ​ in simplest form? Explain.

Is the expression 3x + 2x - 4 in simplest form? Explain.