Answer:
A=26.14 mm²
:)
Step-by-step explanation:
Original Population = 1236000
Growth Rate = 1.3% per year
Since the population grows at an exponential rate, we can say that the growth of the population is an exponential growth.
Using the formula of exponential growth
population after 10 years = Original population (1-1.3%)^10
= 1236000 {1+(1.3/100)}^10
= 1236000 (1+0.013)^10
= 1236000 × 1.013^10
= 1236000 × 1.13787
= 1406407.32
Answer:
Obstuse scalene
Step-by-step explanation:
Scalene - no sides are equal
the triangle is obtuse
To use mental math think instead of 81 to 80 and 16 to 10 and subtract that and add the other numbers and subtract that and you will have your answer presto!
Answer:
a) d'(t) = 32t
The units of d'(t) are ft/s and it gives how fast or how slow the object is falling.
b) The ledge is 784 ft high
And just when the stone strikes the ground, it's moving at a speed of 152.73 miles/hour
Step-by-step explanation:
d(t) = 16t²
a) d'(t) = (d/dt)(d) = (d/dt) (16t²) = 32t
Since it is a time derivative, the units are ft/s and it describes the rate of change of the distance of falling object; more plainly, it gives how fast or how slow the object is falling.
b) d(t) = 16t²
If t = 7 s, how high is the ledge?
d(7) = 16 (7²) = 784 ft
How fast is the stone moving when it strikes the ground (in miles per hour)?
d'(t) = 32t
d'(7) = 32 × 7 = 224 ft/s
In miles/hour
224 ft/s = 224 ft/s × (1 mile/5280 ft) × (3600s/1 hr) = 152.73 miles/hour