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Answer:
we know that, Volume of cube=a³
Let volume of 1st cube be 2x with side a and other be x with side A (according to given ratio)
Step-by-step explanation:
ATQ: 2x=a³ and, x=A³
a=³√2x and, A=x
we know that, surface area of cube is 6a²
Thus, surface area of 1st cube = 6(³√2x)²
= 6³√4x²
Surface area of 2nd cube=6(x)²=6x²
Ratio of S.A=(6³√4x²)÷(6x²)
Ratio of S.A=³√4:1
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Answer:
Step-by-step explanation:
1a:
3/1. 24/8 simplifies to 3/1.
1b:
18 points. The numerator and denominator of 3/1 can be multiplied by 18 to get 54/18.
2a:
2.45/1. 73.3/30 simplifies to 2.45/1.
2b: I don't really know, someone else might have to answer, but I hope what I did put helps!
It’s 2.26 (now I am going to write random stuff bc it says I need to have 20 characters ggvjffdffvhkjhv)
In this question, we find the derivatives, using the chain's rule.
Doing this, the derivative is:

Chain Rule:
Suppose we have a function
, and want to find it's derivative as function of t. It will be given by:

Thus, we have to find the desired derivatives, which are:

Considering 


Considering 


Considering 

- Derivatives of x, y and z as functions of t:



- Derivative of w as function of t.
Now, we just replace what we found into the formula. So


Applying the multiplications:

Applying the simplifications:

Which is the derivative.
For more on the chain rule, you can check brainly.com/question/12795383