pls help due in 25 mins and this, not a test or quiz. so pls don't report. Also I will make brainliest

What is sin 7x/4 ? i need on this urgent trig

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.