calculate the average speed, in ms of the particle in 50 seconds.
[5 markah/5 marks]
jarak (km)
distance (km)
10t--
rajah 3 menunjukkan graf jarak-masa bagi perjalanan zamri dengan
menunggang basikal dari rumahnya ke pejabat pos dan kemudian
balik ke rumahnya.
diagram 3 shows the distance-time graph for zamri's journey by
bicycle from his house to the post office and then back to his house.
(a) nyatakan jumlah jarak, dalam km, yang dilaluinya.
state the total distance, in km, travelled by him.
(b) cari laju, dalam km j'', perjalanannya pulang ke rumah.
find the speed, in km h', of his journey home.
(c) cari tempoh masa, dalam minit, zamri berada di pejabat pos itu.
find the duration of time, in minutes, spent by zamri at the
post office.

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. 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.