Answer:
Step-by-step explanation:
A cube has 6 faces so:
Area of 1 face = 486/6 = 81 cm^2.
Lateral area = 4 * face area
= 4 * 81
= 324 cm2.
Answer:
Answered
Step-by-step explanation:
let you have an interest in establishing the success of the method be p
as higher the p value ; higher the evidence of method success
hence the p value of 0.001 is preferred because it corresponds to the sample evidence that most strongly supports the alternative hypothesis that the method is effective,
The answer of the larger circle = 254.34
Formula = radius*radius*π
The answer of the smaller circle = 113.04
254.34 - 113.04 = 141.3
Hope this helped☺☺
Answer: A. 12%
Step-by-step explanation:-
Given : In an exam , Mean score :
Standard deviation :
Let X be a random variable that represents the scores of students.
We assume that the points are normally distributed.
Z-score :
For x = 85, we have
Then using standard normal distribution table, the probability that the students received more than 85 is given by :-
Hence, the percentage of students received more than 85 =12%
the expression is 8q÷4
Hope this helped!!!