Answer:
Your answer is in the attachment!!
<h2>HOPE IT HELPS U!!!! </h2>
x=4, because 10+(4*2)=10+8=18 and since it is a rectangle the sides are the same.
Answer: 19.77%
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
The formula to calculate z-score is given by :_

For x= 80, we have

The P-value = 
In percent , 
Hence, the approximate percentage of the test scores during the past year exceeded 80 =19.77%
Split in half 20 squared + 10 squared
then find the square root of the answer
10-/5
Answer:
5^3
Step-by-step explanation: