Equation of a circle in standard form:
(x-h)²+(y-k)²=r²
r=radius
(h,k) is the center.
In this case:
(h,k) =(0,0) (h=0,k=0 )
r=4
Therefore:
(x-0)²+(y-0)²=4²
x²+y²=16
Answer: x²+y²=16
Answer:
f(-3)= 15
Step-by-step explanation:
f(-3) means x is equal to -3
-3 squared - 2(-3)
-3*-3 -2(-3)
*Negative multiplied by a negative equals a positive
9+6= 15
f(-3)= 15
Hope this helps!
Answer: 1.721 to the power of 10
Step-by-step explanation:
Answer:
<h2><u><em>
n = 4</em></u></h2>
Step-by-step explanation:
3n + 16 = 7n
3n - 7n = -16
-4n = -16
n = -16 : (-4)
n = 4
---------------- check
3 * 4 + 16 = 7 * 4
12 + 16 = 28
28 = 28
the answer is good
