Answer:
3mph
Step-by-step explanation:
P= 2500
r= 0.0465
A= P. e^(rt)
Where:
A = final mount
P = principal investment
r= rate
T= time (years)
To double it:
2 x 2500 = 2500 e^(0.0465 x t)
(2 x2500)/2500= e^(0.0465 x t)
2= e^(0.0465 x t)
Ln 2 = Ln e^(0.0465 x t)
Ln2 =0.0465t (Ln e)
Ln2 = 0.0465 t
t = Ln2 /0.0465
t= 14.91 years
Triple:
3 x2500 = 2500 e^(0.0465 t)
(3 x 2500 ) /2500 = e^(0.0465 t)
3 = e^(0.0465 t)
ln3 = ln e^(0.0465 t)
ln3 = 0.0465t Lne
ln3= 0.0465t
ln3/0.0465 =t
t= 23.63 y
Answer:
1.5 centimeter
Step-by-step explanation:
1 mm = 0.1 cm
Answer:
OPTION C: (x - 5)(x + 6)
Step-by-step explanation:
Given: (x - 3)(x + 4) - 18
Product of (x - 3) and (x + 4) = x² + 4x - 3x - 12
Therefore, (x - 3)(x + 4) - 18 = x² + x - 30
This is a quadratic equation and the roots are x = 5, -6.
This can be written as binomials as:
(x - 5)(x + 6) which is the required answer.
So, OPTION C is the answer.