Answer:
Step-by-step explanation:
Total number of kindergarten children in that region that were tested is 160
It is generally believed that nearsightedness affects about 12% of children in a certain region. Therefore,
The expected number of kindergarten children expected to be nearsighted is
12/100 × 160 = 19
Probability of success, p = 0.12
Probability of failure, q = 1 - p = 1 - 0.12 = 0.88
Standard deviation = √npq = √(160 × 0.12 × 0.88) = 4.11
Answer:
1. 24 in^2
2. 51 in^2
3. 286 cm^2
4. 90 m^2
5. 60 cm^2
6. 57.06 m^2
7. 185 ft^2
8. 13.5 in^2
9. 252 ft^2
10. I'm not quite sure how to do this one
11. 315 m^2
12. 322 ft^2
13. I cant see all of this one
14. 39 in^2
15. 100 in^2
16. 72.5 in^2
Some of the numbers were very blurry and did my best to make them out so If I got any of them wrong I apologize.
Answer:
4/7 hours each day.
Step-by-step explanation:
there are 4 hours worked in 7 days so it'll be 4/7 each day. buy it didn't show does she work 5 days a week or 7 days a week. If she works 5 days a week then the answer will be 4.5.
hope it'll help! Good night dude!
The triangle area is 7*2/2 = 7.
The volume is the triangle area times the side length, so 7*18 = 126 cm3
Answer A!
45 is the answer i hope this helps