Answer:
7y = x + 28
Step-by-step explanation:
Given x = 7t and y = t + 4
Here t is the parameter Now to remove it express one of it in terms of the variables (like x or y)
Given x = 7t
from this we can write
Now substitute this value in the second equation
y = t + 4
Therefore the parameter is eliminated.
Definition of negative exponent:
Your problem:
Answer:
i think it is .64
Step-by-step explanation:
-1,-2,-4
an = a1 * r^(n - 1)
a1 = first term = -1
r = common ratio = 2
so the equation would be : an = -1 * 2^(n - 1)