I think this story is describing a right triangle with one leg 28, hypotenuse 81 - 28 = 53 and we're asked for the other leg,
√(53² - 28²) = 45
Answer: 45 feet
Answer:Richard is 20 and Teo is 8
Step-by-step explanation: I attached a picture of the process I followed to solve. Hope this helps!
Step-by-step explanation:
Find angle W first:
37 + 93 + W = 180 ---> W = 50°
Use sine law to find the length w:
w/(sin 50) = 31/(sin 37)
w = 31(sin 50/sin 37)
= 39.5
Probability of guessing correctly is 1/5
Probability of guessing incorrectly is 4/5
B: nine and one over two ft