Step-by-step explanation:
2^(2x) - 5(2^x) = -4
(2^x)^2 - 5(2^x) = -4
Substitute 2^x = z --> x = ln(z)/ln(2)
z^2 - 5z = -4
z^2 - 5z + 4 = 0
(z - 1)(z - 4) = 0
z = 1 --> x = ln(1)/ln(2) = 0
z = 4 --> x = ln(4)/ln(2) = 2
(3,-4) (3,5) (3,6)
These all hav the x cord of 3
Plz giv brainlyest Bro I need it
Answer:
y = 2 x - 1
Hope this helps :)
Have a great day !
5INGH
Step-by-step explanation:
When x = 1 , y= 1
x = 2 , y=3
Answer:
The rate of change in the car is -$2695 per annum
