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Vanyuwa [196]
3 years ago
9

Which expression is equivalent to 4.2a−2(0.4a−1.3)

Mathematics
2 answers:
Serggg [28]3 years ago
8 0
Is the answer 4a+1.3
Sati [7]3 years ago
3 0

Answer:

the 3rd one

Step-by-step explanation:

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The points P and Q in the following figure define the line segment (PQ⎯⎯⎯⎯⎯) P Q . The steps involved in using a compass to cons
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8 0
3 years ago
-8<2x-4<4 solve the inequality
il63 [147K]

Answer:

Step-by-step explanation:

The inequality will be split into two

It is know that, if a<b<c

Then a<b and b<c

-8<2x-4<4

Apply that to this

Then,

-8<2x-4. Equation 1

Also,

2x-4<4 equation 2

Solving equation 1

-8<2x-4

Add 4 to both side of the equation

-8+4<2x-4+4

-4<2x

Divide both sides by 2

-4/2<2x/2

-2<x

Note, if a is less than b, then, b is greater than a, e.g. 4 is less than 10, this implies 10 is greater than 4

Therefore,

-2<x

Then, x greater than -2

Equation 2

2x-4<4

Add 4 to both side of the inequalities

2x-4+4<4+4

2x<8

Divide both side by 2

Then,

2x/2<8/2

x<4

Therefore x is between -2 and +4.

Check attachment for graphical solution

7 0
3 years ago
Help me, please lol i really need help
yan [13]

Answer:

honestly I THINK it's the first one

4 0
3 years ago
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