Asap!
the circumference of a circle is 7pi m

what is the area of the circle?

a)3.5pi m^2
b)12.25pi m^2
c)14pi m^2
d)49pi m^2

B) 12.25πm²  

Step-by-step explanation:

The formula for the circumference of a circle is

C = 2πr

The circumference of your circle is

C = 7πm

If we factor out a 2 from the 7, we get

C = (2 × 3.5)πm = 2π(3.5m)

Now, if we compare the two formulas, we see that

r = 3.5m

The formula for the area of a circle is

A = πr²

If r = 3.5m, then the area of your circle is

A = π(3.5m)² = 12.25πm²

18

step-by-step explanation:

ik this stuph and i am smart donkey

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: