the answer is b because the answer for both of them is -39. you might also want to look into the sign rules in algebra bb :)
Just count the amount of each letter and write it as a exponent = 3x²y³
Answer:
P(x< 18) = 0.986
Step-by-step explanation:
Step 1: find the z-score using the formula, z = (x - µ)/σ
Where,
x = randomly chosen values = 18
µ = mean = 7
σ = standard deviation = 5
Proportion of the population that is less than 18 = P(x < 18)
Plug in the values into z = (x - µ)/σ, to get z-score.
z = (18 - 7)/5
z = 11/5 = 2.2
Step 2: Find P(x< 18) = P (z<2.2) using z-table.
The probability that corresponds with z-score calculated is 0.986.
Therefore,
P(x< 18) = 0.986
Answer:
The answer is C (6.21).
Step-by-step explanation:
Number 8 is 300 because 10 times 3 equal 300
