Y = 9x^2 + 5
Use the change rule:
dy / dt = [dy / dx] * [dx / dt]
dy / dx = 18x
and dx / dt = constant = 2 cm / s
Then dy / dt = [18 x] * 2 = 2*18x = 36x
<span>(a) x = -1
dy/dt = 36(-1) = - 36 cm/sec
(b) x = 0
dy/dt = 36(0) = 0 cm/sec
(c) x = 3
dy/dt =36(3) = 108 cm/sec</span>
Answer:
r = 7.3 m
Step-by-step explanation:
A = (pi)(radius)^2, so, if A = 167 m^2, r^2 is found as follows:
167 m^2
r^2 = -------------- = 53.158 m^2
3.14
Taking the square root of both sides, we get
r = 7.3 m
This is correct, because A = (pi)(radius)^2 becomes (3.14)(7.3 m)^2 = 167.4 m^2
Answer:
U = -1
Step-by-step explanation:
-6 - 1 = -7
Area of a circle= 2 times pi times radius squared
A= 2 <span>π r^2
A=2(3.14)(97mm)^2= 609.16 mm^2</span>
6 kilometers is greater than 600 centimeters.
Hope this helps... mark as Brainliest plz