<u>Given</u>:
The line graph shows the number of marks Stacey scored in her homeworks.
We need to determine the Stacey's mean score.
<u>Mean score:</u>
The total number of marks is given by
Simplifying, we get;
Thus, the total number of marks is 40.
Sum of the number of marks scored is given by
Thus, the sum of the marks scored is 20.
The mean is given by
Therefore, Stacey's mean score is 2 marks.
Answer:
th first one
Step-by-step explanationor fully:
Hello,
<span>B.) {x | x > 4}
Have a great night!</span>
2) Period = 3π,
2π/b = 3π, b = 2π/3π = 2/3
Amplitude = 2
Midline = 1
Equation: f(x) = 3sin(2/3(x)) + 1 (no vertical shift)
See attachment for graph.
3) f(x) = -23sin(4x) + 14,
a) amplitude = 23
b) midline = 14
c) Maximum = 37
d) Minimum = -9
explanation:
in regular math: if the function is written as function notation, replace all x's in the expression with your number and solve.
in brainly: click the math button, {it looks like a square root sign with an x inside} press whichever function or process you like and in the text box it should say something like " /[operation]{x}{y} "
in those curly brackets around x and y is where your numbers should go. just get rid of the variable and put it in your number to make the function/process they way you want it to go instead of having those placeholder variables.
