To solve the equation below by completing the square what is the first step?
4x^2+16x=20

a. add 8 to each side of the equation.
b. add 64 to each side of the equation.
c. multiply both sides of the equation by 1/4.
d. multiply both sides of the equation by 1/8.

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

What are the values of each variable in the diagram below?