B the plane has only one dimension
Answer:
Terms must have the same variable (letter) and the same exponent (little number)
(7x² +3y+ 5) +(9x²+11y- 2)
Opening bracket
7x²+3y+5+9x²+11y-2
keeping like terms together
7x²+9x²+3y+11y+5-2
Since terms having same variable and exponent can be subtracted, added,divided and multiplied
So
Solving like terms we get
<u>16x²+14y+3</u> which is a correct answer.
Answer: S1:E7 ; S2:E1 ; S3:E5
Step-by-step explanation:
What we know:
- 3 answers apply
- We need to find which answers go with each question
**A lot of info is problem-specific.
How to solve:
Since we only need to write the equations, we simply need to find the x and y variables, and the total.
Process:
Problem 1:
- Find the x 5.50
- Find the y 3
- Find the total 145
- Write equation 5.50 + 3 = 145
Problem 2:
- Find the x 2.50
- Find the y 0.75
- Find the total 25
- Write equation 2.50 + 0.75 = 25
Problem 3:
- Find the x 2
- Find the y 5
- Find the total 50
- Write equation 2 + 5 = 50
Solution: S1:E7 ; S2:E1 ; S3:E5
172 that’s all just add much
