SOLUTION: if the area of a circle is pie(2x squared+16x+7) what is the radius?
Algebra.Com
Question 284612: if the area of a circle is pie(2x squared+16x+7) what is the radius?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
area of a circle is equal to pi*r^2.
if the area of a circle is also equal to pi * (2x^2 + 16x + 7), this means that:
pi*r^2 = pi*(2x^2 + 16x + 7).
divide both sides of this equation by pi and you get:
r^2 = (2x^2 + 16x + 7)
take the square root of both sides of this equation and you get:
r = +/- sqrt(2x^2 + 16x + 7)
RELATED QUESTIONS
A circle has an area of 25 pie cm squared. If a circle was drawn within that circle the... (answered by Fombitz)
If the radius of a circle is decreased by 2 meters, the area of the circle is decreased... (answered by lwsshak3,MathTherapy)
if a circle has an area of 94.985in squared,what is the... (answered by Alan3354)
May you please help me with this and explain ,thank you .A triangle has an area of 15 cm² (answered by josmiceli,Alan3354)
May you please help me with this question and explain it thank you. A triangle has an... (answered by Alan3354)
If the area of a rectangle is 50 cm squared, what is the radius in centimeters, of each... (answered by Alan3354)
If the circumference of a circle is 18pie , what is the area(in terms of... (answered by tinbar)
The area of a circle is 20 pie. Find the radius in simplest... (answered by longjonsilver)
=22/the circumference of a circle is 132 yds find the radius using pie... (answered by rapaljer,malakumar_kos@yahoo.com)