4/3 · 2.57³ π · 7,860 = 4/3 · r³ π · 2,700 / : 4/3 π
2.57³ · 7860 = r³ · 2,700
r³ = 2.57³ · ( 7,860 : 2.700 ) = 2.57³ · 2.911111... /∛
r ≈ 2.57 · 1.428 = 3.67 cm
Answer: Radius of a solid aluminium sphere is 3.67 cm.
Answer:
3re one down
Step-by-step explanation:
0 is rational
Answer:
-2
Step-by-step explanation:
The slope of a line is
m = (y2-y1)/(x2-x1)
= (-2 -4)/(-1 - -4)
= -6/ ( -1 +4)
= -6 /3
=-2
Answer: She can visit the city on 192 ways.
Step-by-step explanation: If Sally starts from city A, and after going from 4 cities she returns to home, then that can be on 4! = 24 ways.
Answer:
Step-by-step explanation:
- 5(4 +2x) = -(x - 5) - 7
- 20 + 10x = -x + 5 -7
- 10x + x = -2 - 20
- 11x = - 22
- x = -22/11
- x = -2
Correct choice is D
