The graph of y=kcos(8x)
1 answer:
The x coordinate of point A that is shown on the graph is 3π/16.
<h3>How to explain the graph?</h3>From the information given, y = kcos(8x). Also, the axis of symmetry is given as kx.
Therefore, the x coordinate will be:
= π/8 + π/16
The LCM of 8 as 16 is 16.
= 2π/16 + π/16
= 3π/16
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X could either be 4 or 5, depending on which x the question asks. If you have to chose one answer go with 5 because it's associated with the y.
Answer:
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
we have the point (-30,18)
so
x=-30, y=18
Find the value of k
substitute
Simplify
Divide by 6 both numerator and denominator
The probability is 0.8997.
We will use a z-score to answer this question. z-scores are given by the formula
With our information, we have
Looking this up in a z-table (http://www.z-table.com) we see that the area to the left of this (everything less than, up to this value) is 0.8997.
We will use a z-score to answer this question. z-scores are given by the formula
With our information, we have
Looking this up in a z-table (http://www.z-table.com) we see that the area to the left of this (everything less than, up to this value) is 0.8997.