A solid hemisphere A had a radius of 2.8 cm. a) calculate the total surface area of hemisphere A.
give your answer correct to three significant figures.

a larger solid hemisphere B has a volume which is 125 times the volume of hemisphere A

b) calculate the total surface area of hemisphere B. give your answer correct to 3 significant figures.

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.