(36+90)+C=180
126+C=180
C=180-126
=54
Answer=54
Answer:
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Step-by-step explanation:
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The middle right is 145-90, so 55°. I'm not sure about the others
Answer:
x = - 1
Step-by-step explanation:
The equation of the axis of symmetry for a parabola in standard form
y = ax² + bx + c : a ≠ 0 is found using
x = - 
y = - x² - 2x - 5 ← is in standard form
with a = - 1 and b = - 2, thus equation of axis of symmetry is
x = -
= - 1
Equation of axis of symmetry is x = - 1