The answer to this problem would be -22
Answer:
E. 99.7%
Step-by-step explanation:
Calculate each z-score.
z = (x − μ) / σ
z = (173 − 128) / 15
z = 3
z = (x − μ) / σ
z = (83 − 128) / 15
z = -3
You can use a z-score table, or use the empirical rule.
P(-3 < z < 3) = 99.7%.
The answer would be : 5x+1
Just add 2x and 3x
Rational is any number that can be turned into a fraction.
4 could be rational number like 4/1, it’s still 4.
