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natima [27]
3 years ago
8

5r+8=2r solve the equation for r

Mathematics
1 answer:
lianna [129]3 years ago
8 0
I think it is −2.666666666666667 but i’m not sure!
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Evaluate. Write in standard form.
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Answer:

-i

Step-by-step explanation:

(-i)^0 = 1

(-i)^1 = -i

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From this pattern, you see that when the exponent is a multiple of 4, you get 1. When the exponent is a multiple of 4 plus 1, you get -i, etc.

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7 0
3 years ago
I need help with this
borishaifa [10]

Answer:

  ★ = 3

  ✚ = 4

  ■ = 4

  ◆ = 5

Step-by-step explanation:

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  ◆ = 5

  ★ = 3

The values of ★ and ✚ in the first equation must total 7. This means ...

  ✚ = 7 -3 = 4

Again, using direct correspondence in the third equation, we have ...

  ■ = 4

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