The radius of B is 2.5cm.
<h3>What is a circle?</h3>
A circle is the locus of points equidistant from a common point which is called the center of the circle.
Analysis:
Area of circle A = π
/4 = π
/4 = 225π/4
Area of circle B = π
But A = 9B
225π/4 = 9 x π
= 225/36 = 25/4
r = 
= 5/2 = 2.5cm
Learn more about circle: brainly.com/question/24375372
#SPJ1
Step-by-step explanation:
but
if
Yes, 4/12 is less than 4/6.
Y = -t ^ 2 + 300t - 16
We find the first derivative and calculate its roots.
We make the second derivative, and calculate the sign taken in it by the roots of the first derivative, and if:
f '' (a) <0 is a relative maximum
f '' (a)> 0 is a relative minimum
y '= - 2t + 300 = 0
-2t + 300 = 0
t = 300/2 = 150
y'' = - 2
y'' (150) = - 2 (is a relative maximum)
the highest point of the trajectory is reached for t = 150s.
The height for that time is
y = - (150) ^ 2 + 300 (150) - 16 = 67484
answer
67484
t = 150s.
Answer:
what is the question???????
Step-by-step explanation:
????????????????????.
