C! x = 28. If you use simplification, and then you find the answer and use it in the equation, it would be correct.
The answer would be +3 since ur adding 3 every time
Answer:
18°
Step-by-step explanation:
The law of cosines tells you ...
a² = b² + c² -2bc·cos(A)
Solve for cos(A) and fill in the numbers. Note that the value of cos(A) is very close to 1, so the angle will be fairly small. This by itself can steer you to the correct answer.
cos(A) = (b² +c² -a²)/(2bc) = (49 +100 -16)/(2·7·10) = 133/140
A = arccos(133/140) ≈ 18.2° ≈ 18°
Answer:
C)
Step-by-step explanation:
lets be the mass of pluto be x and y of neptune so x=1×10^22 kg and y=1×10^26 kg so, then thousand means 10000 as it has the value in notation form as 10^4.
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