Answer:
if you want a t*-value for a 90% confidence interval when you have 9 degrees of freedom, go to the bottom of the table, find the column for 90%, and intersect it with the row for df = 9. This gives you a t*–value of 1.833 (rounded).
Step-by-step explanation:
Hope this helps!
Answer:
9
Step-by-step explanation:
multiply both sides by 15 to get:
45/5 = x
9 = x
Y=9(x^2+3x-x-3)
y=9(x^2+2x-3)
y=9x^2+18x-27
This is a trapezoid. It is a quadrilateral and only has 1 pair of parallel sides