Answer:
AC = 12.38 cm
Step-by-step explanation:
When there are 2 pairs given, we can use the sine rule to solve the problem.
By pairs we mean "an angle and side opposite to it"
<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>
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Sine Rule is given by 
where,
A and B are the two respective angles and a and b are the two respective sides (of the pairs). Plugging all the info and using algebra, we have:

Thus, AC = 12.38 cm
Answer:
Step-by-step explanation:
No of ways in which 5 cards are chosen is 
No of ways in which at most 4 cards are spades
Total ways-5 spades

Probability that at most 4 cards are spade 



Answer: Yes, because remember there is 2 lengths and widths so x times 2 is 2x and x - 5 times 2 is 2x - 10, so 2x + 2x -10 = 4x -10, so it would be a reasonable answer.
Step-by-step explanation: Hope this helps! :)
The anwser is 5 2/3 hope it helped :)
Answer:
100 miles
Step-by-step explanation:
20 times 5