Whats the answer? Help fast
2 answers:
Answer: 5<em>i</em>√3
<em>i </em>is the square root of -1. Factor that out, along with 5, the square root of 25. That leaves 3 inside the radical.
Step-by-step explanation:
Separate the factors of the number inside the radical, look for perfect squares:
If the number is negative, factor -1, and use <u><em>i </em></u><em> </em>as the imaginary square root of negative 1. and move that out to the left of the radical.
If there is a perfect square, take the square root and move that out to the left of the <em>i </em>outside the radical.
Leave any other values inside the radical.
You might be interested in
Answer:
a)At the 10% significance level, we fail to reject the null hypothesis.
b) P-value is ≈ 0.48
Step-by-step explanation:
Let p be the proportion of the auditors agree with the statement "Cash flow is an important indicator of profitability."
Then,
: p=0.5
: p≠0.5
Test statistic can be calculated as:
z= where
- p(s) is the sample proportion of the auditors agree with the statement. (
=0.525)
- p is the proportion assumed under null hypothesis. (0.5)
- N is the sample size (200)
Using these numbers we get:
z=≈0,707
and p(z) is ≈ 0.48. Since 0.48>0.10, the result is not significant at 90% level. Therefore we fail to reject the null hypothesis.