Answer:
75%.
Step-by-step explanation:
In total, there are 3 gnarly boards in the first shop and 1 gnarly board in the second. We know that he has selected one gnarly board out of the 3 + 1 = 4 existing boards.
The probability the board came from the first shop is 3 / 4 = 0.75 = 75%.
Hope this helps!
Answer:
idk bc it doesnt show
Step-by-step explanation:
put the answer in!!
Answer:
the answer is (a+2)(a²+5)
thank you
Answer:
Step-by-step explanation:
Let X be the variable representing SAT critical reading scores for which the mean is 507 and std dev is 109
X is normal
Critical score for 95% is Z critical = ±1.96
Convert Z to x score as

Critical values of X lie in the range
(293.36,720.64)