Item 11

What is the justification for each step in the solution of the equation?

54+2x=5x-3 (2+6x)

Select from the drop-down menus to correctly justify each step.

The sum of all digits in the numbers 44, 45, and 46 is 27 because (4+4) + (4+5) + (4+6) = 27. Find the sum of digits in the first 25 counting numbers: 1, 2, 3, ..., 25.

What's 4 to the power or 5

Answer true or false. If false, explain briefly. a) Some of the residuals from a least squares linear model will be positive and some will be negative. b) Least squares means that some of the squares of the residuals are minimized.

An integer is represented by x. a rational number is represented by the square root of x the value of the square root of x is between 84/18 and the square root of 41

Find number of neutrons for He

Which of the following equations has the same solution as m - (-62) = 45? 1.) 25 - x = 8 2.) 120 + x = 13 3.) 120 - x = 13 4.) x + 25 = 8

The sum of the measures of the interior angles of a polygon is 2880°. How many sides does the polygon have?

What is the slope of the line through (6,9) (6,9) left parenthesis, 6, comma, 9, right parenthesis and (7,1) (7,1) left parenthesis, 7, comma, 1, right parenthesis?

Elizabeth has 87.75 feet of banner paper how many banners can she make that are 11.25 feet long?

The mean score of a college entrance test is 80; the standard deviation is 15. the scores are normally distributed. what percent of the students scored below 50?