Answer:
1. 46
2. 307.3
3. 40
4. 0
5. 4
6. 0
7.
8. 400
9. -1000
10. 10582
expand: Evaluate:
11. -216 21. 0.015625
12. 81 22. -216
13. 0.03125 23. 2¹.⁹²
14. -81 24. 729
15. 25. 64
16. 343
simplify.
17. 68526
18. 262144
19. 5.960464 x 10¹⁶
20. 0.003906
Step-by-step explanation:
sana maka tulong to sayo
Answer:
There is a 95% confidence that the sample has a mean between 158.92 pounds and 171.48 pounds
Step-by-step explanation:
Given that mean (μ) = 165.2 pounds, standard deviation (σ) = 12.4 pounds, sample size (n) = 15 crates. Confidence (C) = 95% = 0.95
α = 1 - C = 1 - 0.95 = 0.05
α/2 = 0.05/2 = 0.025
The z score of α/2 corresponds to the z score of 0.475 (0.5 - 0.025) which is 1.96. 
The margin of error (E) is given by:

The confidence interval = μ ± E = 165.2 ± 6.28 = (158.92, 171.48)
The confidence interval is between 158.92 pounds and 171.48 pounds. There is a 95% confidence that the sample has a mean between 158.92 pounds and 171.48 pounds
Answer:
x=34
Step-by-step explanation:
90-22=68
68÷2=34
Let's evaluate the ratio test:

The limit as
of this quantity is 3, which is more than 1. So, the series diverges.
no. of boys : no.of girls
100 : 140
to get the simplest ratio you gotta divide both with a common factor
Because both 100 and 140 share a common factor of 20
the simplest ratio will be
100/20 : 140/20
5:7
5:7 is the simplest ratio