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kvasek [131]
3 years ago
8

7x-4 (6-x) +12. if x=6

Mathematics
2 answers:
Hunter-Best [27]3 years ago
6 0
<span>7x-4 (6-x) +12
Substitute 6 for x.
7(6) - 4(6 - 6) + 12
Use distributive property(Multiply -4 by 6 and -6)
7(6) - 24 - 24 + 12
Multiply 7 by 6
42 - 24 - 24 + 12
Subtract 24 from 42
18 - 24 + 12
Subtract 24 from 18
-6 + 12
Add
Final Answer: 6</span>
Darina [25.2K]3 years ago
4 0
We just need to substitute in 6 whether we see an x:

(7*6) - 4*(6-6) + 12
= 42 - 4*0 + 12
=54
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6 0
3 years ago
Please help on this one!
tiny-mole [99]

We can usually get a couple of facts for these that let us rule out answers without working out all the details.

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Since the areas are below they're going to be y ≤ x² + other stuff.  That rules out B and C.  

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7 0
3 years ago
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sashaice [31]
A right triangle follows the Pythagorean theorem: a^2 + b^2 = c^2

Let’s work out the problems
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3. 45^2 + 60^2 = 75^2
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3 0
3 years ago
Through (-2,5) slope=-4
vlabodo [156]
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5 0
3 years ago
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dolphi86 [110]
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3 years ago
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