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lapo4ka [179]
2 years ago
5

Evaluate 4x^2-12x+5 at x=6. A. 67 B. 77 C. 105 D. 221

Mathematics
1 answer:
Kamila [148]2 years ago
3 0

Answer: B. 77

Sub x =6 into the given expression

4x^2 - 12x + 5

= 4(6)^2 - 12(6) + 5

= 144 - 72 + 5

= 77

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Setler [38]

Answer: 10) 615° & -105°

               12) -440° & 280°

<u>Step-by-step explanation:</u>

Coterminal means it is in the exact same spot on the Unit Circle but one <em>or more </em>rotations clockwise <em>or counterclockwise.</em>

Since one rotation = 360°, add or subtract that from the given angle until you get a positive <em>or negative</em> number.

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12) -800° + 360° = -440°   (this is a Negative coterminal angle to -800°)

    -440° + 360° =  -80°      (this is a Negative coterminal angle to -800°)

      -80° + 360° = 280°     (this is a POSITIVE coterminal angle to -800°)

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