For all integers n, if n2 is odd, then n is odd. use a proof by contraposition, as in lemma 1.1. let n be an integer. suppose that n is even, i. e., n =

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!