What is the index of the first character in a string?
A. 0
B. 1
C. -1
D. 2

The index of the first character is 0

Step-by-step explanation:

Using the accessor method the index of the first character is 0, and at the same time the last character is length()-1.

But this is for Java so it might be different for other programs.

If you have any questions feel free to ask in the comments - Mark

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hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)

they would have to work 32 hours.