The answer is 2.11.
For negtives i always subtract the numbers: 51.64-46.09
That always helps me
Answer:
{x | x<5/4}
Step-by-step explanation:
Add 2 to both sides and simplify:
4x<5
Divide both sides by 4 and simplify:
x<5/4
Answer:
Step-by-step explanation:
Given that Heights of 10-year-olds, regardless of gender, closely follow a normal distribution with a mean of 55 inches and a standard deviation of 6 inches.
If X is height then X is N(55,6)
Z score would be 

b) 
c) Tallest 10% z = 1.28
X score =
inches
d)
i.e. 16.37% cannot go on this ride.