What is the solution of x^3 -1 / x^2 + 5x +4 < 0?
1 answer:
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Answer:
A.
Step-by-step explanation:
We have been given that f be a differentiable function such that,
,
, and
. The function g is differentiable and
for all x.
We know that when one function is inverse of other function, so:
Upon taking derivative of both sides of our equation, we will get:
Plugging into our equation, we will get:
Since , then
.
Since we have been given that , so we will get:
Therefore, and option A is the correct choice.
Answer:
Yes, the background color appear to have an effect on the variation of word recall scores
Step-by-step explanation:
Given that results from scores on a test of word recall are given are as follows:
Two test scores have independent means and having normal distribution.
(Two tailed test at 5% significance level)
Group Group One Group Two
Mean 15.1400 12.4200
SD 5.9100 5.4200
SEM 0.9990 0.8910
N 35 37
The mean of Group One minus Group Two equals 2.7200
standard error of difference = 1.335
Hence t statistic = 2.0369
p value = 0.0454
Since p <0.05 we reject null hypothesis
Yes, the background color appear to have an effect on the variation of word recall scores
Answer:
see explanation
Step-by-step explanation:
Given
=
=
Rationalise the denominator by multiplying the numerator/ denominator by
Note that ×
= a
= ×
=