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2 years ago

Combine similar terms and apply the operation. Do NOT evaluate or simplify.

1 answer:

7 0

1. 2x+ 4+3x
= (2x+ 3x)+ 4

2. 12 + 5x -8
= 5x + (12-8)

3. 2x^2 + 3x^2 + 4x
= (2x^2+ 3x^2)+ 4x

4. 5ax - 12 - ax
= (5ax -ax) -12

5. 4xy + 2x + 3xy + x
= (4xy+ 3xy)+ (2x+ x)

Hope this helps~

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Simplfy 2x+4/-3 = 12

nasty-shy [4]

So you have the equation (2x+4)/-3=12
Multiply by -3 on each side.
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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

A mountain road drops 5.2 m for every 22.5 m of the road. Calculate the angle at which the road is inclined to the horizontal.

Anastasy [175]

Answer:

13°

Step-by-step explanation:

sin(Ф)= opposite/ hypothenuse

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1 year ago

Cos^-1(-x)=-Cos^-1x for -1<x<1 TRUE OR FALSE?

VMariaS [17]

We are given

$cos^{-1}(-x)=-cos^{-1}(x)$

Firstly, we will simplify left side

and we will check whether it is equal to right side

Left side:

Let's assume y left side expression

$y=cos^{-1}(-x)$

now, we can take cos on both sides

$cos(y)=cos(cos^{-1}(-x))$

we can simplify it

$cos(y)=-x$

Right side:

Let's assume y left side expression

$y=-cos^{-1}(x)$

Multiply both sides by -1

$-y=cos^{-1}(x)$

now, we can take cos on both sides

$cos(-y)=cos(cos^{-1}(x))$

we can simplify it

$cos(-y)=x$

$cos(y)=x$

we can see that

both sides cos(y) value is different

so, this is FALSE.........Answer

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3 years ago

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