Answer:
3142.86 cubic cm
Step-by-step explanation:
volume of cone is given by formula
volume of cone = 1/3(area of base*height)
Given radius of base = 10cm
we know area of circle is given by
where r is radius of circle
thus area of base of cone is calculated below

area of base of cone is 314.2857 square cm
height = 30 cm
Thus volume of cone = 1/3* (area of base*height)
= 1/3(314.2857*30)
= 1/3 *9428.571 = 3142.857.
Thus, volume of cone is 3142.857 cubic cm.
volume of cone to the nearest hundredth is 3142.86 cubic cm
5x2 - 9x + 3 + 4x2 + 4x - 12
= 9x2 - 5x - 9
hope this helps (all I did was combine like terms)
Answer:
y
Step-by-step explanation:
Step-by-step explanation:
first spinner:
5 is written once :1
total numbers: 13
formula: probability : occurrence of number/total numbers
probability : 1/13.
second spinner:
even numbers: 2,4,6,8,10,12
total : 6 numbers
total numbers: 13
with formula,
probability: 6/13
third spinner:
multiple of four: 4,8,12
total: 3
total numbers: 13
according to formula:
probability: 3/13.
Answer:
Step-by-step explanation:
1+|2+x|=9
1+|2+x| -1 =9-1
|2+x| = 8
2+x = 8 or 2+x = -8
x=6 or x= -10