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Brilliant_brown [7]
3 years ago
5

Evaluate the expression when m=-3 m^2+6m+8

Mathematics
1 answer:
Lelu [443]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

(-3)*(-3) +(6(-3)) + 8

9 + (-18) + 8

9 - 18 + 8

-1

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Answer:

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Step-by-step explanation:

Right scalene triangle.

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Semiperimeter: s = 74.956

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Angle ∠ B = β = 13.627° = 13°37'37″ = 0.238 rad

Angle ∠ C = γ = 90° = 1.571 rad

Height: ha = 16

Height: hb = 66

Height: hc = 15.55

Median: ma = 36.674

Median: mb = 66.483

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Inradius: r = 7.044

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Vertex coordinates: A[67.912; 0] B[0; 0] C[64.142; 15.55]

Centroid: CG[44.018; 5.183]

Coordinates of the circumscribed circle: U[33.956; 0]

Coordinates of the inscribed circle: I[58.956; 7.044]

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∠ A' = α' = 103.627° = 103°37'37″ = 1.333 rad

∠ B' = β' = 166.373° = 166°22'23″ = 0.238 rad

∠ C' = γ' = 90° = 1.571 rad

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