Answer: E = 56
Step-by-step explanation:
E is proportional to √C
To remove proportionality, introduce a constant (k).
E = k × √C
From question,
E = 40 and C = 25
So,
40 = k ×√25
40 = k × 5
k = 8
Now,
C = 49
k = 8
E = ?
E = k√C
E = 8 × √49
E = 8 × 7
E = 56
This is what I got, hope it helps (I used a calculator for this on Google)
Expanded Notation Form:
5
Expanded Factors Form:
5 ×
1
Expanded Exponential Form:
5 × 100
Answer:
see explanation
Step-by-step explanation:
A cube has 6 congruent square faces
The area of 1 face =
×
= ![\frac{4}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B9%7D)
Multiply by 6 to obtain surface area of cube
surface area = 6 ×
=
=
units²