I believe it would be 242 cm^2
32 divided bye 4 well = -8
Answer:
y=x+1
Step-by-step explanation:
To find the line of the equation, use the slope formula to find the slope.
Slope formula is: y2-y1/x2-x1
9-3/6-2= 3/4
Once you have the slope, use that and one of the coordinates to put the equation in point-slope form.
Point-slope form is: y-y1=m(x-x1), with m representing slope and y1 and x1 representing the x and y coordinates.
y-3=1(x-2)
With the equation in point-slope form, you can now distribute 1 to x-2 and simplify to put it in slope-intercept form.
y-3=1x-2
y=x+1
So we want to solve like if it was just a basic equation. We start with 25+3.50x<17+7.50x and get rid of our smallest x. That means we get rid of the 3.50x by subtracting from both sides and our new equation is 25<17+4x. Let’s get our x by itself shall we, so let’s subtract 17 from both sides and we get 8<4x. Finally all we do is divide by 4 and just like that 2
To solve this, we use the z test.
The formula:
z = (x – u) / s
where x is sample value = 20, u is the mean = 15, and s is
the standard deviation = 2.5
z = (20 – 15) / 2.5
z = 2
Since we are looking for values greater than 20, this is
right tailed test. We use the standard distribution tables to find for P.
P = 0.0228
Therefore:
number of students = 100 * 0.0228 = 2.28
<span>2 to 3 students will get greater than 20 measurement</span>
