7. Express as a single logarithm. a) log5+log11 b) log20-log4 log_(5)6+log_(5)8-log_(5)12 d) 2log3+4log2f etg sont deux fonctions de R vers R définies respectivement par f(x)=x^2+x-2etg(x)=sqrt (x) a) Détermine D_(f);D_(fog)etD_(gof) b) Détermine fcirc g(x)etgcirc f(x)Change the percent into a decima 14(9)/(10)%Three relationships are described below: I. The cost of hiring a mover is based on the distance traveled and the total weight of the objects moved. II. The amount of time needed to paint a house decreases as the number of painters increases. III. The income of a worker who gets paid an hourly wage depends on the number of hours worked. What type of variation describes each relationship? I is joint, II is direct, and III is inverse. I is direct, II is inverse, and III is joint. I is joint, II is inverse, and III is direct. I is direct, II is joint, and III is inverse.Change the following percent into a decimal 220%PREV 155156157158159160161162163 NEXT