1x + 8 = 10 + 0.5x
1x - 0.5x = .5x
.5x + 8 = 10
10 - 8 = 2
2/.5 = 4
Therefore, it will take 4 years for the two trees to have grown to the same height.
Answer:
C. 504
Step-by-step explanation:
Got it correct on the assignment
The answers are:
P(9, 2) = 72
P(5, 5) = 120
P(7, 7) = 5040
These are examples of permutations. The problems are asking us to find the total number of ways an event can happen.
In the first case, P(9, 2), we are asked to find the ways that 2 things can be chosen out of a group of 9.
9 x 8 = 72
P(5, 5) = 5 x 4 x 3 x 2 x 1
P(7, 7) = 7 x 6 x 5 x 4 x 3 x 2 x 1
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.
