100,000 beacause of the internet x 2
Answer:
A)Her statement is not correct because a negative times a negative is a positive but if you times it by negative again then it will be negative again not positive
B)(–3) – (–5) = (–3) + 5 = 2
c)Yes she is correct
5 – (–3) = 5 + 3 = 8
(–3) – (–5) = (–3) + 5 = 2
Step-by-step explanation:
Answer:
The volume of the cone is 128π mm³ ⇒ answer (C)
Step-by-step explanation:
* Lets study the cone
- Its base is a circle
- Its height the perpendicular distance from its vertex to
the center of the base
- The length of its slant height = √(h² + r²)
- The volume of the con is 1/3 the volume of the cylinder
∵ The volume of the cylinder = πr²h
∴ The volume of the cone = (1/3) πr²h
* In our problem:
- r = 4 mm
- h = 24 mm
∴ Its volume = (1/3) × π × (4)² × 24 = 128π mm³
* The volume of the cone is 128π mm³
