Which sampling technique is MOST LIKELY being used? Data is collected from every 20th student on a list of the entire school population.
A)
cluster
B)
convenience
stratified
D)
systematic

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

What ia the sum if the first 7 terms of the geometric series