Here, Dilation unit = -2 - (-4) = -2 + 4 = 2
& You can see, You need to reflect the triangle on y-axis, across x-axis.
In short, Your Answer would be Option B [ You were correct ]
Hope this helps!
Here are the answers:
8. 6 servings
9. LCM= 120
9. LCM= 9
10. -72<-70
11.
1. False
2. True
3. True
12.
1. True
2. False
3. False
Answer:
Quadrant I: (1,1), (4,3)
Quadrant II: (-2, 3), (-1, 1)
Step-by-step explanation:
Quadrant I points have positive x and y values. Quandrant II points have negative x values and positive y values.
A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data between 4.2 and 5.1.
Answer: The correct option is B) about 34%
Proof:
We have to find 
To find
, we need to use z score formula:
When x = 4.2, we have:


When x = 5.1, we have:


Therefore, we have to find 
Using the standard normal table, we have:
= 

or 34.13%
= 34% approximately
Therefore, the percent of data between 4.2 and 5.1 is about 34%