Answer:
A
Step-by-step explanation:
B would be just a number, but for A you need to connect data points and actually do some statistics.
(would really, reallly appreciate the brainliest)
Answer:
the first one: y=2x ²-1
Step-by-step explanation:
Plug in the "x" to the equation, so: 2(2) ²-1 = 7 which is "y" in the table above.
Answer:
3 gallons per mile, slope of 3
Step-by-step explanation:
To find out how many gallons the train uses per mile, look at the point (50,150). If you know that the train used 150 gallons to travel 50 miles, do 150/50 to get an answer of 3 gallons per mile.
For the second part, you know that as x increases by 1 (miles traveled) y (gallons) increases by 3, so therefore the slope is 3. You can also check this value by plugging in the points (150,450) and (50,150) into the 
Answer:
Hey there!
The answer to this question is the perimeter of the pool.
x^2+4.24^2=7.07^2
x=5.66.
5.66+4.24+5.66+4.24=19.8
Thus, 19.82 is the correct answer!
Let me know if this helps :)
Answer:
Yes.
Step-by-step explanation:
The relation would be 3 = k*9 as there is a direct proportional relationship.
So k = 3/9 = 1/3 and we can write the relation as d = 1/3 t where d=distance and t = time.
So if we double the time t we have:-
d = 1/3 * 18
= 6 kilometers.
So the distance is doubled.
