F(t) = 2(0.4)^t
To solve f(-2) we should substitute t = -2 into the equation:
f(-2) = 2(0.4)^(-2)
= 2(6.25)
= 12.5
It would be: 072.91. i think u might have to round it
The answer is B. Hope you get it.
Answer:
-64 is the 26th number
it's an arithmetic sequence because the difference between the number is constant : -3
they are all -3 in difference
Step-by-step explanation:
an = a1 + (n-1)d
an = the nᵗʰ term in the sequence
a1=the first term in the sequence
d=the common difference between terms
-64 = 11 + (n - 1)-3
-64=11 -3n+3
-78 = -3n
n = 26
Answer:
45 ÷ x = 9 ... 45 ÷ 5 = 9
Step-by-step explanation:
5 + 4 ≠ 54
45 ÷ 5 = 9
5 - 7 ≠ 12
8 * 5 ≠ 85