First, simplify the expression of the function 
highlighting the perfect square:
Then find the vertwx of parabola. When x=2, f(2)=2 and the coordinates of the vertex are (2,2). The axis of symmetry passes through the vertex and is parallel to the y-axis. Therefore, its equation is x=2 (see attached graph for details).
Answer: x=2.
Answer:
<h2><u>x = 21</u></h2>
Explanation:
x = 
= <u>21</u> degree will be the answer.
{The sum of angle of opposite circumscribed quadrilateral in circle is 180°}
Answer:
V = 9
Step-by-step explanation:
You can see it in the picture.
Margin of error formula:
ME = z * (Sigma) / √ n
z = 1.96 for a 95 % confidence interval;
Sigma = 3 ( the population standard deviation )
n = 500
ME = 1.96 * 3 / √500 =
= 1.96 * 3 / 22.36 =
= 5.88 / 22.36 = 0.263
Answer:
The margin error for a 95% confidence interval is 0.263.
They are all correct good job
