Answer:
r=3
Step-by-step explanation:
- The equation of a circumference is
. - Then , in this case
, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
Answer:
(i) Center = (-1, -2)
(ii) Radius = 5 units
General Circle Equation:
<u>Where</u>:
- (h, k) is the center points
<u>Rewriting the equation</u>:






<u>Identify the following</u>:
- (h, k) = (-1, -2), radius = 5 units
So your equation is f(x)=-4x
If your x=-3, you can rewrite your equation as
f(x)= -4(-3)
To find your answer, simply multiply -4 x -3 and your answer should come to an answer of -12
Answer:
For the first picture:
1) Right angle
2)Acute
3)Obtuse
For the second picture:
W) Acute
Step-by-step explanation: