The rule starting with five. 5 marbles in first line.
Every consecutive line has a number that is four less than twice the previous line.
marbles in second line = 2(marbles in first line) - 4
So the number of marbles in second line = 2(5) -4 = 10-4 = 6
marbles in third line = 2(marbles in second line) - 4
So the number of marbles in second line = 2(6) -4 = 12-4 = 8
marbles in fourth line = 2(marbles in third line) - 4
So the number of marbles in fourth line = 2(8) -4 = 16-4 = 12
marbles in fifth line = 2(marbles in fourth line) - 4
So the number of marbles in fifth line = 2(12) -4 = 24-4 = 20
marbles in sixth line = 2(marbles in fifth line) - 4
So the number of marbles in sixth line = 2(20) -4 = 40-4 = 36
36 marbles must be in the sixth line.
Answer:
UR in trouble
Step-by-step explanation:
Look, the First order is the biggest force in the galaxy.
Now, it is gonna send a star destroyer to ur house and blow it up.
I’m pretty sure the answer is 127.48 ,but I could be wrong.
The bottom answer is correct. I had some trouble with this so I had to find x and y in separate parts.
TO FIND X
notice that the top triangle and bottom triangles are similar, meaning if you multiple all three sides of one by a specific number, it becomes the same size as the bottom triangle.
17 x n = 8, therefore n=8/17
8 x n = X, therefore X=64/17
For some reason, this does not give a correct value for Y, so I had to use trig
TO FIND Y
Notice that the angle DAB is the same as DBC (lets call this angle Ø)
Using trig rule, we know that the cos of an angle is equal to the adjacent side divided by the hypotenuses.
We can now form some equations:
cosØ = 15/17 (from the top triangle)
cosØ = 8/Y (from bottom triangle)
Now we know that Y=(8x17)/15 = 136/15
X=64/15 Y=136/15
