Answer:
Y=c because 5 times 3 equals 15 I dont know x
Step-by-step explanation:
The second one
Hope this helps :D
X = year
y = total height
Type A:
y = 12x + 5
Type B:
y = 13x + 4
12x + 5 = 13x + 4
x = 1; 1 year
Drawing a graph and plotting the points gives B as the location desired.
X axis : -t1 cos 60 + t2 cos 60 = 0
t2 cos 60 = t1 cos 60 ; t2 = t1
Y axis : t1 sin 60 + t2 sin 60 - 150 = 0
since t2 = t1
2t1 sin 60 = 150
t1 ( sqrt(3)/2) = 150/2
t1 = 50 [sqrt(3)]
t2 = 50 [sqrt(3)]
t3 = 150 N
hope this helps