I’m going to say pre-algebra because that’s when I learned it in my school system but you may also learn it in algebra as well, College ready math can start in 8th grade math but I would think it would be in highschool.
-19.6 m/s
Do you need the math as well?
Answer:
3. 2/9,2,0
Step-by-step explanation:
(2/9,2,0,-7)
Answer:
Relative frequency:

The most serious threat to aviation safety is, according to this data, "mechanical failures". It can be improved by more rigorous inspection and better maintenance policies and execution.
Step-by-step explanation:
We have the data for fatal plane crashes. The sum of plane crashes is
We can calculate the relative frequency as:

We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.
Answer:
20
Step-by-step explanation:
C2 + 4r – 3(r - c) = [?]
(2)(2)+(4)(10)−3(10−2)
20