
Step-by-step explanation:


Answer:
458
Step-by-step explanation:
Margin of error = critical value × standard error
At 99% confidence, the critical value is z = 2.576.
The standard error is σ/√n = 5.4/√n.
Given the desired margin of error is 0.65:
0.65 = 2.576 × 5.4/√n
n = 458
Answer:
C) 5 hours
Step-by-step explanation:
Find the mean of the sample
Add the numbers together and divide by the number of points
mean = ( 4.5 + 6.25 + 3+ 2.5+ 7 + 6.75)/6
=30/6
=5
Since the common features of the polynomial function is f(x) = 2x² + 7x + 6 and exponential function g(x) = 2^x + 5 then:
- Both f(x) and g(x) have the same y-intercept of (0,6)
<h3>What is the
polynomial function about?</h3>
Polynomial functions are known to be a kind of an expressions that is made up of a set of variables of different extent or degrees, non-zero coefficients, positive exponents (of variables), and also it is made up of constants.
Note that the equation of the functions are stated as:
f(x) = 2x² + 7x + 6
g(x) = 2^x + 5
The right and next thing to do is to plot a graph of both functions (see image attached)
From the graph, we have the fact that Both f(x) and g(x) have the same y-intercept of (0,6)
Therefore, Since the common features of the polynomial function is f(x) = 2x² + 7x + 6 and exponential function g(x) = 2^x + 5 then:
- Both f(x) and g(x) have the same y-intercept of (0,6)
Learn more about polynomial function from
brainly.com/question/27590779
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