Answer:
The interest will be £45 after 3 years
and £60 after 4 years
Step-by-step explanation:
Principal p = £300, rate r = 5%, time t = 3 year
SI = PRT/100
Interest = (300*5*3)/100
SI = 3*5*3
SI = £45
And after 4 years
Interest = (300*5*4)/100 = 3*5*4
Interest = £60
Answer:
Step-by-step explanation:
From the given function,
f(x) = -3(x + 1)²+ 18
By comparing this equation with the standard equation of the quadratic function,
f(x) = a(x - h)² + k
Here, (h, k) is the vertex.
Part A
Vertex of the given equation → (-1, 18)
Part B
y-intercept → For the value of y at x = 0
y = -3(0 + 1)² + 18
y = -3 + 18
y = 15
y - intercept → (0, 15)
Part C
Since, the given function is opening downwards,
Function will have a maximum.
Part D
Coordinates of maximum point → (-1, 18)
Part E
Axis of symmetry → x = -1
Step-by-step explanation:
s=12km t=15m
15m--> km= 15/60= 0,25h
V=s/t
V=12km/0,25h
V= 48 km/h
