When the slope is negative
Answer:30
Step-by-step explanation:
6 ; 9 ; 14 ; 21 ; .............
6+3=9
9+5=14
14+7=21
21+9=30
Answer:
option B.
About 16% of the books have fewer than 150 pages
Step-by-step explanation:
Since we are dealing with a normal distribution
68.27% of the values will fall in the range with the standard deviation
(180-30 , 180+30) = (150, 210)
Approximately 15.86% of the values will be higher than 210
and the rest 15.86% will be lower than 150
So the correct answer is option B.
About 16% of the books have fewer than 150 pages
11.99 x 0.1 = 1.20
11.99 - 1.20 = 10.79
10.79 x 0.07 = 0.76
10.79 + 0.76 = 11.55
Your final answer is $11.55
I'm sorry, I'm not sure, but try your best!