Answer:
Step-by-step explanation:
If we are given the quadratic model, we know that the height of anything on the ground is 0 meters, so that model becomes
I changed your x's to t's since t is for time.
Now we need to factor that quadratic and solve for time:

Since -2 definitely does not equal 0, then

Factor that and find t values of 4 and -2. Again, we know that time will never be negative, so
t = 4 seconds.
Answer:
20 gallons
Step-by-step explanation:
105/15=7
7*20=140
Answer:6 cups
Step-by-step explanation:
3/4.5=4/x
Cross product
3x=18
X=18/3
X=6
Answer:
Of(7) = f(1) + 24
Step-by-step explanation:
Since this Arithmetic Sequence can be written recursively as a function, then we can write the whole sequence, by adding the common difference to the previous function. So writing it as an Arithmetic formula is (placing an example, with a common difference of 4 units):

25.59- 9.99= 15.60
15.60/ 0.05 = 312
312 minutes this month