Answer:
486cm^2
Step-by-step explanation:
cube volume: 729cm^3
cube faces count: 6
How you calculate square area:
s(cm) * s(cm) or just s^2(cm^2)
s = side length
If you want to find out the side length of a cube by its volume. Then simply just remove the ^3 by taking the cubic root (also written ^(1/3))
729^(1/3) = 9
then just calculate the area like i showed earlier:
(9cm)^2 = 81cm^2
But that is only one side of a cube's 6 sides, so multiply by 6:
81cm^2 * 6 = 486cm^2
Hope i could help :D
Dont be scared to ask me questions..
Answer:

Step-by-step explanation:
Circumference of the column 
Circumference of a circle
Therefore:

Area of a Circle 
Since radius of the cross section of the column =9 meters
Area of the cross section of the column

Step-by-step explanation:
Domain x belongs to [-4 , 0]
Range y belongs to [-4 , 4]
The equation that models the number of students who live in apartments will be 6n + 15
<h3>How to illustrate the equation?</h3>
Total number of students T = 17n + 23
Students who live in dorm rooms on campus D = 11n + 8.
Therefore, the students who live in apartments will be:
= 17n + 23 - (11n + 8)
= 6n + 15
In order to predict the number of students who will live on campus in 2020, we will need the students that do not share dorm rooms.
Learn more about equations on:
brainly.com/question/2972832
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2.5875
Step-by-step explanation:
look first the mixture is 4 Apple: 5 cranberry okay and the will make 1:5 littre so you will mince 4:5 from 1:5 and you will get 3:5. 3 for appple.and 5 for the other so you will make the next equations 3×0.45= . and 5×0.8= . and you will get the apple price and the second price so you will make new apple price: new cranberry price=