Answer:
Below :)
Step-by-step explanation:
B. X<(with line under)40
Answer:
65
Step-by-step explanation:
Answer:
So the answer for this case would be n=16 rounded up to the nearest integer
Step-by-step explanation:
For this case we have the following info given:
represent the population deviation
represent the margin of error desired
The margin of error for the true mean is given by this formula:
(a)
And on this case we have that ME =0.03 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The confidence level is 80%, the significance would be and the critical value for this case is , replacing into formula (b) we got:
So the answer for this case would be n=16 rounded up to the nearest integer
Answer:
C) y = 2x +8
Equation of the straight line passing through the point (-2,4) and having slope m =2
y = 2x +8
Step-by-step explanation:
<em>Step(i):-</em>
<em>Given that the points are (-2,4) and (6,20)</em>
<em>The slope of the line</em>
<em> m = </em><em></em>
<em> m =2</em>
<u><em>Step(ii):-</em></u>
Equation of the straight line passing through the point (-2,4) and having slope m =2
y - 4 = 2( x-(-2))
y = 4 + 2x +4
y = 2x +8
You use a compass to draw an arc (or a full circle). The radius must be kept the same so that you can copy the length of the segment properly. If the compass could move freely, then it is unlikely the arc will be a piece of a circle, and rather some squiggly curve. So this is why the compass width must be locked into place.