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Sonbull [250]
3 years ago
7

Find the zeros of Cubic Polynomial and verify that the relationship between the zeros and the coefficients.

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

\bf \large \: Hope \:  It  \: Helps \:  You!

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Im factoring and i need to find what times what equals 120 but subtracts to be 7
geniusboy [140]
It would have to be 15 and 8 
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3 years ago
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Sedbober [7]
The answer would be 6. 21/3.5=6
6 0
3 years ago
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Simplify the given expression below:
Dima020 [189]

Answer:

4) 8+2i

Step-by-step explanation:

When you expand you get 3+4i+5-2i

when you add the like terms you get 8+2i

5 0
3 years ago
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PLS HALP on formulas involving polygons
jeyben [28]
The sum of all five angles is 540 degrees.
A) 4*congruent angles + 5th angle = 540
B) (5th angle) -30 = 2*cong angle

A) 5th angle = 540 -4*cong angle
B) 5th angle  = 2*(cong angle)   -30
Multiplying B) by -1
B) -5th angle  = -2*(cong angle)   +30  then adding to A)
A) 5th angle = 540 -4*cong angle

-2*(cong angle)   +30  = 540 -4*cong angle
2*(cong angle) = 510
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By trial and error I determined
each congruent angle = 95
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6 0
3 years ago
A waitress sold ribeye steak dinners and grilled salmon​ dinners, totaling ​$ on a particular day. Another day she sold ribeye s
Paul [167]

Answer:

  • ribeye steak: $24.37
  • grilled salmon: $9.30

Step-by-step explanation:

If we let r and g represent the costs of a ribeye steak dinner and grilled salmon dinner, respectively, the sales figures give rise to two equations.

  17r +15g = 553.74

  22r +5g = 582.65

If we multiply the second equation by 3 and subtract the first, we have ...

  3(22r +5g) -(17r +15g) = 3(582.65) -(553.74)

  49r = 1194.21

  r = 1194.21/49 ≈ 24.37

  g = (553.74 -17r)/15 ≈ 9.30

The steak dinner costs $24.37; the salmon dinner costs $9.30.

_____

<em>Check</em>

17(24.37) +15(9.30) = 553.79 . . . not 553.74

22(24.37) +5(9.30) = 582.64 . . . not 582.65

There is no exact solution to this problem.

4 0
3 years ago
Read 2 more answers
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