I have no idea what that is so sorry
Answer: x= -2
Step-by-step explanation: Remove parentheses. Move terms. Collect the like terms. Calculate the sum. Change the signs on both sides of the equation and you should get x= -2.
Answer: U = 8w-16/-12
Step-by-step explanation:
-12u + 13 = 8w -3
-12u + 13 - 13 = 8w -3 -13
-12u = 8w -16
u = 8w - 16/ -12
Answer:
-11
Step-by-step explanation:
Answer:

Step-by-step explanation:
Average life of electric bulbs = 300 hrs
standard deviation = 45
Total no of bulbs tested = 100
Probability that sample mean is less than 295 =?
Using Central Limit Theorem

From table of normal distribution:
