  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: evaluating   nouvelle recherche

4 articles trouvés pour ce sujet.    Page1/1            Evaluating -x^2 + (yz - 3)^2 2009-09-28 Kathy pose la question :My daughter and I are having trouble solving this equation: -x²+ (yz  3)² if x=-4,y=2 and z=0 We are having difficulty with the -x² part of the equation. ThanksPenny Nom lui répond.     Evaluating numeric expressions 2009-02-10 Jennifer pose la question :-521-(-350)-164-(-299)Penny Nom lui répond.     Rewriting and evaluating formulas 2001-11-19 A conserned mother pose la question :Due to the wide range of temperatures experienced in Canada, engineers who construct roads must allow for expansion and contraction of the road surface. The following formula is used to calculate the amount of expansion E to allow for: E= kL(T-t), where k is the constant of expansion for the road surface. L is the length of the section of highway in metres. T is the temperature of the air in degrees Celsius. t is the temperature, in degress Celsius, at which the section of the highway was constructed.Walter Whiteley lui répond.     Functions 2000-01-06 Tori Morris pose la question :Consider the function f(x)=x2-3. Which of the following are true? f(1)>f(0) f(2)>f(-3) f(2)=f(-2) f(-1)=f(3). More than one answer can be true.Penny Nom lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site