Find the domain of the function (f/g)(x), given f(x) = x² - 4x - 21 and g(x) = x² - 16.

{x | x ≠ -4 and x ≠ 4}
{x | x ≠ -3 and x ≠ 7}
{x | x ≠ 4}

i have tried photo math and such and can not get an answer

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?