Triangle Area formula is A=1/2b•h
Answer:
Jo Margin of error is 20
Step-by-step explanation:
The expression for calculating Margin of error is =
From the given question:
standard deviation sd = 50
sample size = 25
THUS; the Margin of error is :
≅ 20 (to the nearest whole number)
Hence; Jo Margin of error is 20
Answer
0.5454...
Step-by-step explanation:
0.5454
11⟌60000
<u> - 0</u>
60
<u>- 55</u>
50
<u>- 44</u>
60
<u>- 55</u>
50
<u>- 44</u>
6
Answer:
Step-by-step explanation:
Let the vertex form of parabola is given by,
y = a(x - h)² + k
Here, (h, k) is the vertex.
From the figure attached,
Vertex of the parabola = (2, -5)
Therefore, equation of the parabola will be,
y = a(x - 2)² - 5
For the value of a,
Parabola passes through a point (0, -4),
-4 = a(0 - 2)² - 5
-4 = 4a - 5
4a = 1
a =
Equation of the parabola will be,
A line parallel to the x-axis has a slope of 0. Thus, it's a horiz. line. Since it passes thru (1,5), the equation of this line is y = 5.