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icang [17]
3 years ago
7

Solve using the quadratic formula.

Mathematics
1 answer:
Ivanshal [37]3 years ago
7 0

the answer is z=0, 1 over 3

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6

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Which expression is equivalent to 11 - (-3 5/8) ?
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7 0
3 years ago
Hello there >3 i would like explanation for this :)
Blizzard [7]

Answer:

  75

Step-by-step explanation:

Let t and u represent the tens and units digits, respectively.

  t = u + 2 . . . . the tens digit exceeds the units digit by 2

  t + 2u = 17 . . . . the sum of the tens digit and twice the units digit is 17

Substituting for t in the second equation, we get ...

  (u +2) +2u = 17

  3u = 15 . . . . . . . . subtract 2

  u = 5 . . . . . . . . . . divide by 3

  t = u+2 = 7

The number is 75.

_____

<em>Check</em>

7 exceeds 5 by 2. 7 + twice 5 = 7 + 10 = 17.

8 0
3 years ago
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