Identify the maximum value of the function y = -6x^2- 12x - 1

Arandom sample of 100 children were asked whether they prefer apples or oranges. the results are shown in the table. apples oranges boys 27 18 girls 32 23 select a word or phrase from the drop-down menus to correctly complete the statements describing the association. of the boys surveyed, more . of the girls surveyed, more . there appear to be an association between gender and fruit preference.

How do you use the elimination method for this question? explain, because i really want to understand!

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'