Answer:
x=3, y=2
Step-by-step explanation:
5. -6a-48
6. 36x+4
7. 30n+40
8. 1.8m+2
Yess
Answer:
b. t = 10.5 seconds.
Step-by-step explanation:
l = 0.81t^2
90 = 0.81t^2
t^2 = 90 / 0.81
t^2 = 111
t = 10.5 seconds.
The area of a triangle is A= 1/2bh. Plugging in the values you know, 30= 1/2*12*h.
Solving for h,
30= 1/2*12*h
30= 6h
h=5
The height of the triangle is 5 units.