Answer:
- 
Step-by-step explanation:
Given
← cancel sec x on numerator/ denominator
= 
= - 
Answer:x=20 y=70
Step-by-step explanation:
Answer:
(3,5)
Step-by-step explanation:
<u>Given that</u> :
Diameter (d) = 18 cm
Pi (π) = 3.14
Radius (r) = d/2 = 18/2 = 9 cm
We know that volume of sphere is
Volume of Sphere = 4/3πr³
Volume = 4/3 × 3.14 × (9)³
Volume = 4/3 × 3.14 × 729
Volume = 4 × 3.14 × 243
Volume = 12.56 × 243
Volume = 3052.08
<u>Hence, the volume is 3052.08 cm³</u>