From what my calculator said, Radical 7 is 2.6457511311064591 (why not m8) and obviously 2.65 is not bigger than 3.5 or 3.444
Answer:
Step-by-step explanation:
4.
2ab cos C=a²+b²-c²
2×31×14 cos C=31²+14²-40²
868 cos C=961+196-1600=-443
cos C=-443/868
C=cos^{-1}(-443/868)≈120.688≈120.69°
5.
by sine formula
m∠B=180-(62+55)=180-117=63°

The coefficients are the numbers in front of x or the 4.4 in the equation. So you can just divide the numbers.

Divide to 2.2
<span>So we want to know in which point do light rays that are incident on a lens and parallel to the principal axis converge. Rays parallel to the principal axis and are incident on a lens converge in the focal point of the lens. So the correct answer is focal point.</span>
Answer:
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