Mathematics: In exercises 4-6, a survey reported that 235 of the 500 voters in a sample voted for candidate A and the rest voted for candidate B? 4. What percent of the voters in the sample voted for candidate A? What percent of the voters in the sample voted for candidate B? 5. What is the margin sampling error? Round your answer to the nearest tenth of a percent. 6. For each candidate, give an interval that is likely to contain the exact percent of all voters who voted for the candidate. 7. For #6, can you

answer: 22.62°step-by-step explanation: let abc is the right triangle,in which, ab = 12, ac = 13, ∠b = 90° and ∠a = xthen, by the pythagoras theorem, [tex]ab^2+bc^2= ac^2[/tex] [tex]12^2+bc^2 =13^2[/tex] [tex]144+bc^2=169[/tex] [tex]bc^2= 169 - 144[/tex][tex]bc^2= 25[/tex][tex]bc= 5[/tex]thus, [tex]sin x = rac{bc}{ac}[/tex][tex]sin x = rac{5}{13}[/tex]⇒ x = 22.619864948° ≈ 22.62°...