6z+43z=78
Collect like terms
49z=78
Z=78/49
Z=1.59
Hope this helps!
I could only figure out the partial quotient way im sorry but i think this could help
Answer:
18 seconds
Step-by-step explanation:
according to the question
-16t²+5184=0 (0 because when the height is 0 the ball will hit the ground)
-16t²=-5184
t²=-5184/-16
t²=324
t=√324
t=18