Answer:
A It cannot be determined from the information given.
Step-by-step explanation:
Right angle because that has 90 degree angle
Ok, so after you do -8a+5a, you also have to do 6 -35, getting the equation
-29-3a
The sample mean is the sum of the sample values divided by the number of them:
(7 +7 +10 +6 +9 +6 +8 +7.5 +8.5 +8)/10 = 77/10 = 7.7
The sample mean is 7.7.
