Answer:
Step-by-step explanation:
-4x + 2y = -30
-2x + 2y = -10
-4x + 2y = -30
2x - 2y = 10
-2x = -20
x = 10
-2(10) + 2y = -10
-20 + 2y = -10
2y = 10
y = 5
(10, 5)
Answer:
Evaluate the expression below when x = 4 and y = -2 *
hii your question is incomplete
can you please recheck once
there is no expression given
The equation of circle with the center at (h,k) is:

r stands for radius. Therefore r^2 = diameter or 2×radius.
The question has already given the information we need, which are:
- radius = 4
- the center at (0,8)
Since the center is (h,k) - therefore the center is at h = 0 and k = 8 making it (h,k) = (0,8).
Substitute the values in the equation:

Simplify to the simplest form

Answer
- The equation of a circle is x^2+(y-8)^2 = 16
Answer:
dea/ced
Step-by-step explanation:
.786 rounded to the nearest tenths is 0.8