Set y=0 for the x intercepts, so expanding it we get x^2+4x+4+5=0 and x^2+4x+9 =0. Using the quadratic formula, we get that x= (-4+-sqrt(16-36))
right here, we see that the square root of something would be negative, so there are no x intercepts.
for the y intercepts, we set x=0 to get 2^2-5=-1.
for the vertex, we use x^2+4x+9 and -b/2a=the x value of the vertex =-4.
Plugging -4 into it, we get -16+16+9=9 for the y value of the vertex, getting (-4,9). Since -1 from (0, -1) is smaller than 9, the parabola forms a frowny face and goes downwards. Plug some random points in, and you'll have it down!
Given that population of the city is 280000.
Rate of growth of the population = r = 4.5% = 0.045
We have to find population after 15 years so time
t = 15
We can use growth formula to find the required population which is given by :
Where P= starting population = 280000
r= rate of growth = 0.45
t= time = 15
now plug these values into above formula.
Hence population after 15 years will be approx 73735743.
Answer:
540 mins | 9 hours | 540, 9
420 mins | 7 hours | 420, 7
300 mins | 5 hours | 300, 5
180 mins | 3 hours | 180, 3
Step-by-step explanation:
1 hour = 60 mins
To convert hours into minutes, multiply the number of hours by 60 minutes:
9 hours × 60 mins = 540 mins
7 hours × 60 mins = 420 mins
5 hours × 60 mins = 300 mins
3 hours × 60 mins = 180 mins
Answer:
There is an error in the equation.
f ( x ) = 63 X?? or whatt??
