Answer:
C 12 inches
Step-by-step explanation:
you get the circumference formula C = 2 *pi *r
then divide 2 from 75 and then pi and then you get your radius
i hope this helped<3
Answer:
2, quadratic, 1
Step-by-step explanation:
Degree is the highest power which is 2 then the lead coefficient is the constant multiplying the highest power so for x^2 it is 1 and the type of equation is what is it, linear, quadratic, cubic, etc. For this it is quadratic because x^2 means its a parabola.
Answer:
x = 9
Step-by-step explanation:
Solve for x:
x^2 - 18 x + 81 = 0
Write the left hand side as a square:
(x - 9)^2 = 0
Take the square root of both sides:
x - 9 = 0
Add 9 to both sides:
Answer: x = 9
Answer:
x=-5, x=9
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
equate to zero
so
substitute in the formula
therefore
The solutions are x=-5, x=9
