Answer:

Step-by-step explanation:


Answer:
its 6
Step-by-step explanation:
divided 12 with 2 and divided 30 with 5
61 / 3427= 0.01779982. (rounds up to 0.02 if rounded by hundredths)
(2√5 + 3(√7))^2
(2√5 + 3(√7))(2√5 + 3(√7))
4*5 + 6√35 + 6√35 + 9*7
20 + 12√35 + 63
20 + 63 + 12√35
83 + 12√35
D) 4.5 Standard Deviations Above the Mean
All you have to do is add .2 to 6.6 until you reach 7.5
6.8
7.0
7.2
7.4
Then you only need half of .2 to reach 7.5, so it's 4.5 standard deviations above the mean