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ololo11 [35]
3 years ago
12

Simplify (5+7x^3+3x^2)+(-12+5x+6c^2)

Mathematics
1 answer:
quester [9]3 years ago
4 0
(5+7(x^3)+3(x^2)) + (-12+5x+6(c^2))

-7 + 7x³ + 3x² + 5x + 6c²
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Answer:

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One month Yoko rented 3 movies and 5 video games for a total of $40. The next month she rented 9 movies and 7 video games for a
KATRIN_1 [288]

Answer:

  • movie: $3.75
  • video game: $5.75

Step-by-step explanation:

Two equations in two unknowns can be written:

  3m +5v = 40

  9m +7v = 74

These can be solved a variety of ways. One of them is using Cramer's rule. It tells you the solution to

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  • dx +ey = f

is given by ...

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  • x = (bf -ec)/∆
  • y = (cd -fa)/∆

For the numbers above,

  • ∆ = 5·9 -7·3 = 24
  • m = (5·74 -7·40)/24 = 90/24 = 3.75
  • v = (40·9 -74·3)/24 = 138/24 = 5.75

The rental cost for each movie is $3.75; for each video game, it is $5.75.

___

The attached graph shows a graphing calculator solution to these equations.

5 0
3 years ago
How to do this ? ....
DerKrebs [107]
I’m pretty sure it’s 11. So answer D
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3 years ago
Ms portillo cat weighs 6 kilograms her dog ways 22 more killergrams how much does the dog way
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Answer:

28 kilograms

Step-by-step explanation:

All you have to do is 22+6

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