Answer:
No. 5x and 5x² are not like terms.
When a variable is raised to two different powers, they can not be added together.
Another way to look at it is to note that:
5x + 5x² ≡ 5x(1 + x)
It is more obvious there that 1 and x are not like terms, thus neither are 5x and 5x², though they do have common factors.
3

x
You can put that on a number line. Be sure that the dot you use is closed.
Answer -70
Step-by-step explanation
Sum means the solution of adding numbers
So
-21+(-49)
Both have a negative sign so the answer will also have a negative (only while adding them)
So you add them the solution is 70 and u put the negative sign
The solution is -70
Answer:12.04
Step-by-step explanation:
A^2 +B^2=C^2- pythag formula
8x8=64
9x9=81
64+81 =145
c= root 145 square root it as a squared + b squared = c squared
c=12.0415
Answer:
Speed = Distance / Time
Distance = Speed x Time
Bus: 15 x 40 = 600 m
Clever: 600 / 60 = 10 minutes
Answer = 10 mins
Step-by-step explanation:
hope it helps:) brainlest?!