What is the value of x? sin(4x-10)°=cos(40-x)°
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The piecewise function describing the cost C of the reunion are C(x) = 500 + 17.5x, where x <= 40 and C(x) = 1200 + 14.75(x - 40), where x > 40
<h3>Write a piecewise function describing the cost C of the reunion.</h3>The given parameters are:
Reserve = $500
Cost per guest = $17.50 for the first 40 guests
Cost per guest = $14.75 for each additional guest
The above means that
C(x) = 500 + 17.5x, where x <= 40
C(x) = 500 + 17.5 * 40 + 14.75(x - 40), where x > 40
Next, we evaluate the functions
This gives
C(x) = 500 + 17.5x, where x <= 40
C(x) = 1200 + 14.75(x - 40), where x > 40
<h3>Use a graphing calculator to graph the function</h3>To do this, we simply plot each function with its domain
See attachment for the graph of the piecewise functions
Read more about piecewise functions at
#SPJ1
Answer:
True
Step-by-step explanation:
The margin of error of a confidence interval is given by:
In which z is the critical value related to the confidence level, is the standard deviation of the population and n is the size of the sample.
So as n increases, the margin of error decreases, that is, the interval gets narrower.
The students could produce a narrower confidence interval by increasing the sample size to 100.
From the explanation above, the answer is true.