Bonjour j'ai mon dm de math a rendre pour demain merci de m'aider. 1. calculer la valeur exacte de l'aire une sphère de rayon 12m 2. donner l'arrondi de cette aire au m2 près 1. calculer la valeur exacte de l'aire dune sphère de diamètre 5dm 2.donner l'arrondi de ce volume au dm3 près 1. calculer la valeur exacte du volume dune boule du volume dune boule de diamètre 7,2 dm. 2.donner l'arrondi de ce volume au dm3 près. dans un cylindre de hauteur 12m et dont le disque de base a pour rayon 3cm, on a placé deux boules de rayon 3cm. calculer le volume restant dans ce cylindre.

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.