First, you combine like terms. I would start by circling the term and the sign in front of it. (A term is a piece separated by an addition/subtraction sign.) You can only combine terms with the same variable. 4.8a-2.1a-6.3b+7b is the same as your equation, just rearranged. Then, subtract (4.8a-2.1a) which is 2.7a. Add (-6.3b to 7b) The answer is 0.7b. If you have any questions, you can message me!
Answer:
530.66
Step-by-step explanation:
to find the area you need to do pi times the radius square and to find the radius squared you just times it by its self so 13 times 13 which is 169 and pi is 3.14
so now you just do 3.14x169=530.66
Answer:
?
(2scos(pi/6) +2i sin(pi/2))^n =-64...n=?
Step-by-step explanation:


Shoe lase method
You can find the answer by using the shoe lase method.
Answer:
a=75
Step-by-step explanation:
85^2-40^2=5625
then the square root of that is 75