If the mean of the observations: x+1, x+2, x+3, x+4, x+5, x+6, x+7, x+8, x+9, x+10 is 20, what is the mean of the last three digits?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?

Convert to the greater unit before finding the perimeters of this rectangle: 6ft. 6in. by 7ft.

Rob is investigating the effects of font size on the number of words that fit on a page. he changes the font size on an essay and records the number of words on one page of the essay. the table shows his data. which equation represents the approximate line of best fit for data, where x represents font size and y represents the number of words on one page?