Answer is 2a.
(1) Rephrase the expression as (15-13)a
(2) Solve the parenthesis and get 2
(3) Multiply 2 by a = 2a
Answer:
A
Step-by-step explanation:
As the normal distribution is symmetric the mean is (36 +
42) / 2 = 39
p(X < 42) = 1 - 0.063 = 0.937
From tables Φ (1.53) = 0.9370
From this time:
42 is 1.53 standard deviations above the mean
42 = 39 + 1.53s
1.53s = 3
Standard deviation is = 1.96
Answer:
104 pants
Step-by-step explanation:
520= 10x
520/10= 52
x=52
52*2=104
it says pair of pants which means 2 pants, so for every 2pants she makes she gets $10
