16x^4 -81 =(ax^2+b)(cx+d)(cx – d) In the equation above, a, b, c, and d are constants. If the equation is true for all values of ac,
what is the sum of a, b, c, and d?

Pest analysis, a framework for understanding different facets of the world in which a business operates, looks particularly at political, social, and technological factors.

Jasmine thinks that andrea is responsible for posting embarrassing pictures of her on the internet and sending them around the school. jasmine finds andrea before school and starts yelling at her about taking the pictures down. andrea pushes jasmine. what should jasmine do first?

This graph represents four ecosystems. each ecosystem has a different number of species, adding to its biodiversity. different colors represent different species. which statements correctly summarize the data depicted by the graph? 1. ecosystem d has more biodiversity than ecosystem c. 2. ecosystem b has more biodiversity than all the other ecosystems. 3. ecosystem a has more biodiversity than ecosystem b but less biodiversity than ecosystem c. 4. ecosystem b has more biodiversity than ecosystems c and d but less biodiversity than ecosystem a. 5. ecosystem a has more biodiversity than ecosystem c but less biodiversity than ecosystem b.