Answer:
A. True
Step-by-step explanation:
Decision analysis is the process of making decisions based on research and systematic modeling of tradeoffs. Decisions based off of research are considered to be rational.
Answer:
One solution
Step-by-step explanation:
By inspection, you can see that adding either 3x or 4x to y yields the same result of 7, meaning that x must be 0. If x is 0, y must be 7, meaning that this equation has only one solution. Hope this helps!
Solution:

1. For Best Actor
= 59 years

Z, Score for best actor named, 

Z-Score for best actor = 1.24
2. Z , Score for best supporting actor , called 
=49 years

Z-Score for best supporting actor = 0.70
Z-Score is usually , the number of standard deviations from the mean a point in the data set is.
3. As, 
So, we can say that,Option (B) The Best Actor was more than 1 standard deviation above is not unusual.
4.As, 
So, we can say that,Option(A) The Best Supporting Actor was less than 1 standard deviation below, is not unusual.
If he runs 30 minutes a day and does a lap in 5 minutes then divide
The sum of the angles of a triangle is 180°. So you can do:
91° + (8x + 3)° + (10x - 4)° = 180° To find x, you need to isolate/get the variable "x" by itself in the equation. First combine like terms (terms that have the same variable and power/exponent]
91 + 3 - 4 + 8x + 10x = 180 (I rearranged for the like terms to be next to each other)
90 + 18x = 180 Subtract 90 on both sides
18x = 90 Divide 18 on both sides to get "x" by itself
x = 5
PROOF
91° + (8x + 3)° + (10x - 4)° = 180° Plug in 5 for "x"
91° + (8(5) + 3)° + (10(5) - 4)° = 180°
91° + (40 + 3)° + (50 - 4)° = 180°
91° + 43° + 46° = 180°
180° = 180°