Answer:
3 and 5
Step-by-step explanation:
use the guess and check method form the numbers 1, 3, 5 since only the square of these 3 numbers are under 34.
Answer:
4s¹²/(9t⁴)
Step-by-step explanation:
<u>Solving in steps:</u>
- (3s⁻⁴t⁷s⁰)⁻²(-2s²t⁵)² =
- 3⁻²s⁻⁴ˣ⁻²t⁷ˣ⁻²(-2)²s²ˣ²t⁵ˣ² =
- 1/9×s⁸t⁻¹⁴(4)s⁴t¹⁰ =
- 4/9 ×s⁸⁺⁴t⁻¹⁴⁺¹⁰ =
- 4/9 ×s¹²t⁻⁴=
- 4s¹²/(9t⁴)
Answer:
Step-by-step explanation:
The formula for determining confidence interval is expressed as
Confidence interval
= mean ± z × s/ √n
Where
z is the value of the z score
s = standard deviation
n = sample size
a) The 95% confidence level has a z value of 1.96
The 99% confidence level has a z value of 2.58
Since 99% confidence level z value is greater than 95% confidence level z value, if we input it into the formula, it will result to a higher confidence interval. So changing from a 95% confidence level to a 99% confidence level would make a confidence interval wider.
b) The √15 is smaller than the √350. This means that if we make use of the formula, √350 will give a lower confidence interval than that of √15. Therefore, the confidence interval would be narrower changing from a sample size of 15 to a sample size of 350.
c) Applying the formula, a standard deviation of 15 pounds would result to a lower confidence interval than a standard deviation of 20 pounds. Therefore, the confidence interval would be wider changing from a standard deviation of 15 pounds to a standard deviation of 20 pounds.
More information is needed to answer you.
1 foot is 12 inches. 2 feet is 24 inches. yea so I'd say 30 inches is definitely longer
