Find the radius of the circle whose equation is 3x² + 3y² = 75.

5 units

Step-by-step explanation:

We know that the general equation of a circle having center at (h,k) and radius r is given by :-

Given : The equation of a circle :

Taking 3 as common from the left side of the given equation , we get

Divide 3 on both the sides , we get

Comparing to the general equation of circle , we get

Hence, the radius of the circle = 5 units

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.