Need quick the volumes of two similar solids are 1331 m3 and 343 m3. the surface area of the larger one is 484 m2. what is the surface area of the smaller one? 1372 m2 196 m2 343 m2 none of these

To solve this question we will have to make note of an important fact of geometry. That is, "volume is proportional to the cubed of the linear dimensions and that surface area is proportional to the squared of the linear dimensions".

Now, let the volume of the larger solid be and the volume of the smaller solid be

Let the linear dimension of the larger solid be and the linear dimension of the smaller solid be .

Now, it has been given in the question that, and . Therefore the ratio is:

.............(Equation 1)

Therefore, the cuberoot of the above equation will give us the ratio of the linear dimensions as:

...(Equation 2)

Let be the surface area of the larger solid. Then, we know that, . Let be the surface area of the smaller solid. Then we know that, the ratio of the surface area will be the squared of the linear dimensions. Thus, the squared of the ratio of the linear dimensions in (Equation 2) will be equal to the ratio of the surface areas.

Thus, we will have:

(given), we can easily find as:

Thus,

Therefore, from the given options, the second option is the correct answer.

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions