Answer:
10b - 60
Step-by-step explanation:
So the question is asking to use the Distributive Property with giving the equation 10(b - 6).
So the distributive property is just multiplying the number outside the parenthesis with the numbers inside the parenthesis, so lets implement that :
(10 * b - 6 * 10)
10b - 60
You can only multiply and add with associative property. are you talking about distributive property or identity property
Answer:
7
Step-by-step explanation:
σ = 4 ; μ =?
8.52 to the left of X
.
P(X < 8.52) = 64.8%
P(X < 8.52) = 0.648
Using the Z relation :
(x - μ) / σ
P(Z < (8.52 - μ) / 4)) = 0.648
The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)
Z = 8.52 - μ / 4
0.38 = 8.52 - μ / 4
0.38 * 4 = 8.52 - μ
1.52 = 8.52 - μ
μ = 8.52 - 1.52
μ = 7