Answer:
(x,y) = (-2,-4)
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
That would be y = (x +10)^2.
Answer:
1) Known information:
- The perimeter.
-
- The formula of the perimeter of the rectangle:
Unknown information:
- The value of the widht.
- The value of the length.
2) Equation:
3)
Step-by-step explanation:
1. The problem gives you the perimeter, the formula of the perimeter of a rectangle and says that the width of a rectangle is 3 feet shorter than its length (), but does not give the value of the widht and the value of the lenght.
2. Based on the information given, you can write the following equation:
Where is the lenght and is the width.
Substitute into the equation above, then you have:
3. Solve for the lenght:
4. Know you can calculate the width:
5. Therefore, the length is 134 feet and the widht is 131 feet.
Answer:
The volume of the cone is 75.36 cm³
Step-by-step explanation:
The rule of the volume of a cone is V = π r² h, where
- r is the length of the radius of its base
- h is the height of the cone
In the given figure
∵ The length of the radius of the cone is 3 cm
∴ r = 3 cm
∵ The length of the height of the cone is 8 cm
∴ h = 8 cm
→ Substitute the values of r and h in the rule of the volume above
∵ π ≅ 3.14
∵ V = (3.14)(3)²(8)
∴ V = 75.36 cm³
∴ The volume of the cone is 75.36 cm³