Asap; need correct answer! (10 points) solve for x. use the completing square method. x^2+10x=6

answer choices:

a) x=-5+ or- the square root of 6

b) x=-10+ or - the square root of 6

c) x=-10+ or -square root of 31

d) x=-5+ or - the square root of 31

- < minus sign; sorry for any confusions!

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it

Ineed to know how to write question one in mathematical terms