Add 18 each time
first term is -108
an=a1+d(n-1)
d=common difference
a1=startng term
an=-108+18(n-1)
31 term
a31=-108+18(31-1)
a31=-108+18(30)
a31=-108+540
a31=432
31st term is 432
For a geometric progression
a, b, c, d
there is a common ratio r equal to:
r = b/a = c/b = d/c
Let the missing number be x
r = x/50 = 450 /x
x² = 22500
x = 150
Greatest common factor of 18 and 12 is 6
18/6 = 3
12/6 = 2
so she can make 6 bags...each containing 3 chocolate bars and 2 bags of cookies
Answer:
okay so first to find the surface area of the net below you should always start from the line that is pointing at the end of the the i n u m so you see that is between 8 1/8 and 2 so you see the line you draw a line in the middle between 8 and then when you look and then you draw another line were 19 years and then you draw another line so you can see that at the top of 19 and there at the bottom of 918 you see that you can find the Nets below because you can see me you draw your line it shows you Drawing the Line because when you draw a circle in the middle and then you draw a another little circle in the middle is shows the surface area of the net below so bye
