Answer:
13
Step-by-step explanation:
1980 = ( n - 2 ) * 180
n - 2 = 11
n = 13
Answer:
576.99
Step-by-step explanation:hope this helps;)
Answer: 2.5%
Step-by-step explanation:
Mean score = 65
Standard deviation = 5
Score (x) = >75
Z-score = [(score - mean) ÷ standard deviation]
Z - score = [(75 - 65) ÷ 5]
Z - score = 10 ÷ 5 = 2
P(score higher than 75) = 100 - 95 = 5/2 = 2.5%
Answer:
83.55
Step-by-step explanation:
i think
The surface of the water is 0 feet. So 10 feet down means it is 0 - 10, or -10 feet as its final position.