Shape S below is exactly one quarter of a solid sphere, centre O. The volume of shape S is 19441 cm
O
Find the surface area of S.
Give your answer correct to 3 significant figures.
You must show your working.
Shape S
4
Volume of sphere
ar
”
Surface area of sphere = 41r
Total marks: 5​

the answer is c hope it

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

13664

step-by-step explanation:

=cross multiply

=100 x = 13664

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)