Answer:
Circle B has a larger circumference.
Step-by-step explanation:
Circumference of a circle is the diameter times pi.
C = pi•d
Circle B has radius 5, so its diameter is 10. Circle A has diameter of 9. A larger diameter will give a larger circumference.
C_circle A = 9pi
~= 28
While,
C_circle B = 10pi
~= 31
Circle B's circumference is about 3 cm larger. More accurately it's 1pi larger.
Answer:
The equation is 7 + x = -10
The answer to this equation is x = -17
Step-by-step explanation:
The way we find this answer is by subtracting 7 from both sides.
We do this because we want x by itself.
so -7 + (-10) is -17
The end result is -17.
Area of rhombus = 1/2 * diagonal * diagonal
72 = 1/2 * AC * BD
Diagonals bisect each other in a rhombus so if EC is 8 then AC is 16
72 = 1/2 * 16 * x - 1
72 = 8(x-1)
9 = x-1
X = 10
Check
72 = 1/2 * 16 * 10-1
72 = 1/2 * 16 * 9
72 = 8 * 9
72=72
The first sentence → x - 2y = -1
the second one → 3x - 2y = -3
multiply the first one by -1
you can get → -x + 2y = 1
plus two sentences together
you can get → 2x = -2
so you are able to know that x = -1
and y = 0
