Given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)
1 answer:
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The vertex form of the equation of a parabola is given by the following form:
In this exercise, we have the following equation:
From here, we can conclude that:
Since the leading coefficient is less than zero, the parabola open downward. So, the graph is shown below and the vertex has been indicated.
<h2>Learn more:</h2>Finding leading coefficient: brainly.com/question/1469367
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Yes it is. Input the numbers into the pythagorean theorem,
and if they equal each other it is a right triangle.
Answer:
1.165.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
In this problem, we have that:
. So
So the correct answer is:
1.165.