Like terms have to have the same variables and the variables have to have the same powers.

3x and 6x are like terms.
3x and 6y are not.

4y^2 and 7y^2 are like terms.
4y^3 and 7y^6 are not.

2xy and 5xy are like terms.
2xy^2 and 5x^2y are not
2xy^2 and 5xy are not.

3 0

3 years ago

Which of the following satisfies 2x^2 + 5x = 7?

Radda [10]

I believe it is A, x=1

5 0

2 years ago

Read 2 more answers

Caold someone PLEASE HELP me with number 56

dusya [7]

What's the question?

5 0

4 years ago

The ratio of the heights of two similar solids is 6:11. Find the ratio of their surface areas.

vaieri [72.5K]

Answer:

The ratio of surface areas is 36:121.

Step-by-step explanation:

We have, the ratio of the heights of two similar solids is 6:11. It is required to find the ratio of their surface areas. As the two solids are similar, it means that the ratio of surface areas of solids is directly proportional to the square of their heights such that,

$\dfrac{S_1}{S_2}=(\dfrac{h_1}{h_2})^2\\\\\dfrac{S_1}{S_2}=(\dfrac{6}{11})^2\\\\\dfrac{S_1}{S_2}=\dfrac{36}{121}$

So, the ratio of surface areas is 36:121.

8 0

3 years ago