Answer: Diameter = 4 cm
Step-by-step explanation:
20π = (π)(r^2)(5)
divide by 5 * π
4 = r^2
find the square root of both sides
2 = r
2 * 2 = d
4 = d
Answer:
my brother said it was
Step-by-step explanation:
1400.053...
30% = 30/100 = (30 x 3)/(100 x 3) = 90/300
1/3 = (1 x 100)/(3 x 100) = 100/300
As 90/300 < 100/300
Therefore 30% < 1/3
Answer:
x= -5
y= -2
Step-by-step explanation:
From the equation y=x+3-------eqn 1
x+y= -7-------eqn2
x+(x+3)= -7 (since there is no value before the bracket is 1, so multiply by 1)
x+x+3= -7
2x+3=-7
2x=-7-3
2x=-10
x=-10/2
x=-5
Insert x value in equation 1
y= -5+3
y=-2
10! / (!2 * 8!) = '10 choose 10 choose 8
