Question

4 + 8 + 4y solve using formula​

Answer 1

Answer:

Y= -3

Step-by-step explanation:

4+8+4y=0

12+4y=0

4y= -12

y= -12/4

y= -3

Answer 2

Answer:

ANSWER

Step-by-step explanation:

ANSWER

Total surface area of the hemisphere =462cm

2

Total surface area of the hemisphere =2πr

2

⇒462=3πr

2

⇒r=7 cm

Volume of hemisphere =

3

2

πr

3

V=

3

2

×

7

22

×7

3

V=718.67cm

3