While I'm unsure what the word choices were, his claim is likely to be true.
Since he claims the probability of heads is 40%, that should be what we see in an experiment. 0.38 is very close to 0.40, or 40%, so this is true. Therefore his claim is likely to be true, and the probability of tails should be about 60%.
The x column gives you the x intercepts. While the y column gives you the y intercepts.
F(X) = x^4 +64x^2
x^4 +64x^2 = x^2(x^2 +64)
hope this will help you
Supplementary angles = Angles that add up to 180°.
∠5 + ∠7 = 180° ← supplementary angles
∠1 = ∠5
Since ∠5 + ∠6 = 180°
⇒ ∠1 and ∠6 will also be 180° . ← supplementary angles
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Answer: ∠5 + ∠7 (Answer D) and ∠1 + ∠6 (Answer A)
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