31 Les maths autour de moi En 2010, l'explosion de la plateforme pétro-
lière Deepwater Horizon a causé une énorme
marée noire. En un mois, 100 millions de litres
de pétrole se sont déversés en mer.
En admettant que ce pétrole se soit étalé uni-
formément à la surface de l'eau pour former
une couche de 10-3 mm d'épaisseur, quelle
était l'aire (en km2) de la nappe de pétrole ?
35

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places

To factor 4x2-25, you can first rewrite the expression as:

Aproblem on a geometry test asks students to sketch a regular polygon. which choice could be a solution for this problem?