What is the first step in solving the quadratic equation x2 – 40 = 0?

taking the square root of both sides of the equation
adding 40 to both sides of the equation
squaring both sides of the equation
subtracting 40 from both sides of the equation

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Divide. write in simplest form 41/6 divided by 10

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?