times by a on both sides
a(a+8)= -5
expand brackets
a^2 + 8a = -5
minus 5 on both sides to set equal to 0
a^2 + 8a -5 = 0
use quadratic formula to get 2 solutions
-
type into calculator. one solution from + other from -
Answer:
For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:
Null hypothesis (H0):
Alternative hypothesis (H1):
And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 200 or no
Step-by-step explanation:
For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:
Null hypothesis (H0):
Alternative hypothesis (H1):
And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 2000 or no
Answer:
13.568/2.12= 6.4
92.565/56.1= 1.65
Sorry I couldn't give u an explanation but I hope this helps u alot and I checked twice to make sure it was right too, But just to double check, Check it again yourself with an calculator! Glad I could help u!
Assuming Y is located in the center of the circle, the answer would be TY.