Hi,
The answer would be 300 messages. To explain, there are 60 seconds in a minute so 120 divided by 60 is 2, so that means 2 words per second. So to get the answer for 150 seconds, you multiply 150 by 2 and get 300.
I hope this helps!
Answer:
3,600
Step-by-step explanation:
1 yard= 36 inches
36 inches*100= 3,600
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Brainliest? I am trying to get to a new rank so I can help more people and I would totally appreciate it if you did!
Merry Christmas!
Answer:
not sure what it is....
Step-by-step explanation:
Answer b
Because -2-5 adds -5 to it equals -7
If you have any questions about answer just ask
And please give brainliest
Answer:
21.759
Step-by-step explanation:
Given that :
Mean (m) = 25
Standard deviation (s) = 12.5
Sample size (n) = 40
α = 90%
The confidence interval is obtained using the relation:
Mean ± Zcritical * s/sqrt(n)
Zcritical at 90% confidence interval = 1.64
25 ± 1.64 * (12.5/sqrt(40))
Lower boundary : 25 - 1.64(1.9764235) = 21.75866546
Upper boundary : 25 + 1.64(1.9764235) = 28.24133454
(21.759, 28.241)
Hence, lower bound of confidence interval is : 21.759