So,
You should know that
and
Putting everything together,
As we knw that the dr/dt = 2
And The area of the circular slick is given by formul
A = (pi)r^2.
Now lets take derivative:
<span>dA/dt=2πrdr/dt
As we knw that radius is 25
so</span><span>dA/dt=2π(25)(2)=100π
which is equal to
=314.16 per minute this is how area is increasing
now for part b
</span><span> t = 4, the radius will have increased to 8 m.
now we will put the values in formula dr/dt
</span>so it will be.dA/dt=2π(8)(2)
=32π
=100.53 is the answer
hope it helps
Answer:
Step-by-step explanation:
the answer is 5
since 2 × 3 = 6
and the product is 30
so to get 30 , we need to multiply 6 by 5
hope this helps
plz mark it as brainliest!!!!!
Answer:
Step-by-step explanation:
y= a*b x (a is initial value b= growth rate)
y=8000(-1)^1 x= 1.018^ 1* 1.8
x=0.1527= time* 12
f(x)=x. f ( x )= x. = 0.1527 * 12
or we can square so that x^2=1.8 and x= 1.34164 note this can only be used for the first 5 decimal place.
This shows the exponential growth we expand and introduce y=8000 (-1)^12 to find one year.
one year y-1^ 12 this represents 144 the 1.8% of the y=144 the starting point of 1/12 on axis
f(x)=2x. f (x )= 2x add y (1)^1 would sh9ow year 2 at athe same rate
Triangle is equilateral with sides of 6.
Therefore all angles = 60°
Ht of 30-60-90 is 3sr3 = 5.196
Area of 30-60-90 = 1/2×b×h = 3×5.196
Area = 15.59
Pie slice from each corner = 60/360×pi×r^2, with r = 3
1/6×pi×9 = 4.71 × 3 pie slices = 14.13
So, shaded inner region = area triangle - 3 pie corners = 15.59-14.13
= 1.46
