9x+12=5x+4
9x-5x=12-4
4x=8
x=8/4
x=2
Answer:
30 cm
Step-by-step explanation:
The circumference of a circle is
C = 2*pi*r
60pi = 2* pi *r
Divide each side by 2pi
60/2pi = 2 pi r/ 2pi
30 =r
Factorial 6 or 6! is 6*5*4*3*2*1, or 720.
factorial 3 times factorial 2 equals 3*2*1*2*1 or 3*2^2*1 or 12
R= -6
-4(1--6^7)/1--6=
-4(279937)/7=
-1119748/7=
-159964
Your answer is A