Instructions:
select all the correct answers.
which equations have one solution?

a) 1/3x+3=26+6/19x-23
b) x+3+3x=-3+4x+6
c) 2(1/5+1/4x)-2x=x-1
d) 4.3x+2.5-2.2x+2.2-2.1x=0
e) 2(4x+3)+2x=5(2x+3)
f) 2/5x+10+3/5x=2x+5

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?