Bonjour j'ai un souci en maths pouvez vous m'aidez dans chacun des cas suivant dire si l'égalité est vraie ou fause pour la valeur de t proposée. 1° 3 + t = 2 x t + 7, pour t = 4 2° 9 x (t-6) = 3 x t, pour t = 9 3° 4 x (t - 1) = t x t, pour t = 2 2 ème problémé en france la pointure p des chaussures est déterminée parla formule p = 1,5 x (l+1) où ldésigne la longueur du pied en cm. 1 paul dont le pied mesure 25 cm, affirme chausser du 39 est-ce exact ? 2° flo chausse de 35 avec un pied mesurant 23 cm. est-ce-possible

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.