Questions in mathematics

Questions in mathematics

📝 Answered - Residents of three counties were polled to find the percentage of residents who are Republican or Democrat. | | Democrat | Republican | Total | | ------ | -------- | ---------- | ----- | | County 1 | 4,050 | 2,470 | 6,520 | | County 2 | 3,925 | 6,010 | 9,935 | | County 3 | 2,100 | 5,950 | 8,050 | | Total | 10,075 | 14,430 | 24,505| Find the following relative frequencies to the nearest tenth of a percent. Republican residents of County 1: [$\square$] 37.9 % Democratic residents of County 1: [$\square$] 62.1 % Total Republican residents: [$\square$] 58.9 % Total Democratic residents: [$\square$] 41.1 %

📝 Answered - Given the polynomial: [tex]$-x^2-8 x-7+7 x^3+2 x^4$[/tex] Evaluate the polynomial for [tex]$x=5$[/tex]

📝 Answered - Which line is perpendicular to a line that has a slope of $-\frac{1}{3}$? line MN line $AB$ line EF line JK

📝 Answered - Evaluate the definite integral [tex]$\int_2^6(8 x+5) d x$[/tex]

📝 Answered - Find the imaginary and real parts of the complex number \((1+2i)^{-2}\).

📝 Answered - Differentiate with respect to [tex]$x$[/tex] [tex]$\frac{e^{2 x^2} \sqrt{\sin x}}{(2 x+1)^3}=$[/tex]

📝 Answered - Prove that the arithmetic sequence with first term \(\frac{1}{2}\) and common difference \(\frac{1}{4}\) contains all natural numbers?

📝 Answered - Which points are on the perpendicular bisector of the given segment? Check all that apply. (-8,19) (1,-8) (0,19) (-5,10) (2,-7)

📝 Answered - Find the $y$-intercept. $\begin{array}{l} y=\frac{3 x+30}{x-10} \\ (0,[?]) \end{array}$

📝 Answered - Solve $-\frac{1}{2}(4-2 x)=x+8$ for $x$.