What is the least common denominator of 1/7,2/5 and 2/3?

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth