3 years ago

3x^2 - 4x + 7 (Find the domain of the expression)

1 answer:

3 0

x1 = −(−4) − √ (−4)2 − 4×3×7 2×3 = 4 − 2 × √ 17 i 6 ≈ 0.666667 − 1.374369ix2 = −(−4) + √ (−4)2 − 4×3×7 2×3 = 4 + 2 × √ 17 i 6 ≈ 0.666667 + 1.374369i

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ella [17]

Answer:

$m\angle Y=40^\circ$

Step-by-step explanation:

Suppose we have a triangle WXY whose internal angles are:

$m\angle W = 10x+17$

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The sum of the measures of the angles must be 180°, thus:

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15x + 15 = 180

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