-3/5 or -0.6
:) hope i helped
Ok so what you want to do is multiply 2 tines 4 which is 8 then multiply 723 8 times into the calculator or just press the button next to the button on the left 8 times ok then do that again for 723^5 power so whatever product you get for the both of them multiply them then divide whatever product you get on to top to the bottom oops sorry that is the long way so basically 4 times 2 is 8 now that plus 5 = 13 so now on the top half we have 723^13 and on the bottom it is the same thing so divide your answer is 1
19^2 + x^2 = 21^2
19^2 = 361
21^2= 441
361 + x^2 = 441
x^2 = 441-361 = 80
x = sqrt(80) = 8.944 round to nearest tenth = 8.9
Is it a multiple choice question
