Answer:
A(t) = π(8t)²
Step-by-step explanation:
Radius of a circular wave increases by 8 cm each second.
Every second radius of circular wave so the sequence of increase in radius will be,
8, 16, 24, 32.........(8t)
Here 't' = time
Since, area of a circle = πr²
Therefore, area of the circular wave after 't' seconds since the wave begins,
A(t) = π(8t)²
Answer:
-4 is your answer
Step-by-step explanation:
Answer:
SA =784 pi units ^2
Step-by-step explanation:
The surface area of a sphere is given by
SA = 4 pi r^2
The radius is 14
SA = 4 pi (14)^2
SA =784 pi units ^2
F(x)=2x+3-(x+10)
0=2x+3-x-10
0=x-7
-x=-7
x=7
Answer:
y = -1/4x - 1.
Step-by-step explanation:
y = 4x + 5
The slope of this is 4 so the slope of line perpendicular to this line = -1/4.
Using the formula y - y1 = m(x - x1):
y - (-1) = -1/4(x - 0)
y + 1 = -1/4x
y = -1/4x - 1.