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3 years ago

Simplify this expression 3x+6x

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

5 0

9x would be the answer.

Ierofanga [76]3 years ago

4 0

Since both 3x and 6x have the variable x in it, we can just go ahead and add 3 and 6.

3x+6x=9x

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A. 3<br> B. 1/3<br> C. -3<br> D. -1/3

guapka [62]

Answer:

Step-by-step explanation:

This is a negative slope since it is going from left to right so that leaves you with c or d.

The slope is rise over run so in this case the rise is 1 and the run is -3 since its going left.

This leads you to -1/3

Hope this helped :)

5 0

2 years ago

What is the value of x in the equation 3(2x+8)=0

maxonik [38]

Answer:

x = -4

Step-by-step explanation:

3(2x+8)=0

Divide each side by 3

3/3(2x+8)=0/3

2x+8 = 0

Subtract 8 from each side

2x+8-8=0-8

2x = -8

Divide by 2

2x/2 = -8/2

x = -4

7 0

3 years ago

What is the slope of the line that passes through (-4, 5) and (1, 3)?

Tasya [4]

M=-2/5 is the answer to this equation

7 0

3 years ago

If a diameter intersects a chord of a circle at a right angle, what conclusion can be made?

drek231 [11]

Answer:

The chord is bisected.

Step-by-step explanation:

see the attached figure to better understand the problem

In the circle of the figure

The diameter is the segment DE

The chord is the segment AB

PA=PB=r ----> radius of the circle

Triangles PAC and PBC are congruent right triangles by SSS

Because

PA=PB

PC is a common side

AC=BC ----> Applying Pythagoras Theorem

therefore

The chord AB is bisected

6 0

3 years ago

Read 2 more answers

I need help because I didn't understand and I don't know how to do and I don't know plz help me and if you help me I would like

zepelin [54]

Umm what do you need helo with?

3 0

3 years ago