Factor completely 9x2 − 25.
1 answer:
You might be interested in
X | y
----------
-3 | 3.5
-2 | 3.25
-1 | 2.5
1 | 5.5
2 | 4.75
3 | 4.5
----------
-3 | 3.5
-2 | 3.25
-1 | 2.5
1 | 5.5
2 | 4.75
3 | 4.5
Answer:
I. Volume = 301.6 cm³ (to 1d.p)
II. CSA = 188.5 cm² (to 1d.p)
Step-by-step explanation:
<u>Given the following data;</u>
Height, h = 8cm
Radius, r = 6cm
Curved length = 10cm
a. To find the volume of the cone
Where;
- V is the volume of the cone.
- r is the radius of the base of the cone.
- h is the height of the cone.
Substituting into the equation, we have;
<em>Volume = 301.6 cm³</em><em> </em>(to 1d.p)
b. The curved surface area of the cone
Where;
- CSA is the curved surface area of the cone.
- r is the radius of the base of the cone.
- l is the curved length of the cone.
Substituting into the equation, we have;
<em>CSA = 188.5 cm²</em> (to 1d.p)