Answer:
Step-by-step explanation:
Given the exponential function as
substitute both points in the equation above
point (-3,16) will be
point (-1,4) will be
make a the subject of the formula in both equations above
This means
Cross multiply as;
Divide by 4 both sides to get
Divide by b^-1 both sides
Find value of a
Hence
a=2 and b=1/2 thus write the equation as;
Start with he equation
3.5t + 4t = 4 - I did this since the walked the same amount of time and the total distanace covered was 4 miles
7.5t = 4
t = 0.53 hours
Answer:
218,900
Step-by-step explanation:
Log5(x)+log5(4x-1)
As the bases are the same the number doesn't matter
Log (a) + log(b) =log (ab)
Log(4x^2-x)
(x )(4x-1)
x=0.25 or x=0
Log(4×0.25^2-0.25) = log(0) = Infinity
Same with 0. So no answer