Answer:
The directrix is y=6 and focus is (0,4)
The equation of the parabola is,
20-4y=x²
Answer:
second is 1.50 first is 11.15
Step-by-step explanation:
see if it works for you I changed my fractions into decimals
Surface area in units of PI = 2 x r x h +2 x r^2
first picture:
r = 7, h = 18
2 x 7 x 18 + 2 x 7^2
252 + 98
350 PI cm^2
2nd picture:
2 x 9 x 20 +2 x 9^2
360 + 162
522 PI in^2
Answer:
⁻ 
Step-by-step explanation:
⁻
⁻
× 
⁻ × 
⁻
⁻
⁻
