Answer:
the formula for a function d(x) that describes the distance is 
Step-by-step explanation:
We are going to define final point
, and initial point
, then we can use
, so we obtain
, by developing it 
This formula describes the distance between those two points and involves x
sure what is it about maybe I can help you if it's possible
Answer:A
Step-by-step explanation: the answer is a
I would say your answer is FALSE
Answer:
Noor's age is 12 & Salma's age is 18
Step-by-step explanation:
Noor's age: N
Salma's age: S
: given
: given
: isolate "N"
: substitute the value of N for N to find the value of "S"
: subtract 3 from both sides
≡
: multiply both sides by 2
: add like values
: divide both sides by 3
S = 18
now insert that value into the initial equation:

: subtract 18 from both sides