Given:
The pair of expressions in the options.
To find:
The pair that shows equivalent expressions.
Solution:
We have,
By using distributive property, we get
So, option A is incorrect and option B is correct.
We have,
By using distributive property, we get
So, options C and D both are incorrect.
Therefore, the correct option is B.
a) the answer of the substitute is 300
b) the answer of the substitute is 7027/300 or 23.423
We know that the side lengths of the square base are: x * x. The volume is 12, so for now, let's say that y is the other side length. Then, x * x * y = 12. We can solve for y: y = 12/x^2. Now, we find the surface area of the 5 sides.
Four of the sides have the same area: x * (12/x^2) = 12/x, so we multiply this by 4: 48/x.
The last side is the base: x * x = x^2.
We add 48/x to x^2:
x^2 + 48/x
So, the answer is the fourth choice, (d).
Answer:
3x +6
Step-by-step explanation:
The rectangle representing the product 3(x+2) will have dimensions 3 and (x+2). It can be divided into portions with areas 3·2 = 6, and 3·x = 3x.
An equivalent expression is ...
3x +6
I'd say the answer would be 8.
