Answer:
Element A: 5
Element B: 3
Element C: 0
Step-by-step explanation:
Magnitude of -3 = 3.
Remove (-) to find magnitude.
Positive and zero value have same value for magnitude.
Answer:
(
−
5
,
1
)
Step-by-step explanation:
Use the midpoint formula to find the midpoint of the line segment.
Answer:
Area = 12 square centimetres
Answer:
The proportion of students whose height are lower than Darnell's height is 71.57%
Step-by-step explanation:
The complete question is:
A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 centimeters. Darnel is a middle school student with a height of 161.4cm.
What proportion of proportion of students height are lower than Darnell's height.
Answer:
We first calculate the z-score corresponding to Darnell's height using:

We substitute x=161.4 ,
, and
to get:

From the normal distribution table, we read 0.5 under 7.
The corresponding area is 0.7157
Therefore the proportion of students whose height are lower than Darnell's height is 71.57%
Answer: -1.8m3n2
Step-by-step explanation: