Answer:
189 is the LCM of 27 and 21
Answer:
The standard error of the mean is 10.11 points
Step-by-step explanation:
Standard error of mean = t×sd/√n
sd = 115 points, n = 500, degree of freedom = n-1 = 500-1 = 499, assuming a 95% confidence level, t-value corresponding to 499 degrees of freedom and 95% confidence level is 1.96501
Standard error of mean = 1.96501×115/√500 = 10.11 points (to the nearest 100th)
The point-slope form:
m - slope
The formula of a slope:
We have the points (-2, 3) and (1, -3). Substitute:
The standard form: Ax + By = C. Convert:
<em>use distributive property</em>
<em>subtract 3 from both sides</em>
<em>add 2x to both sides</em>
