Answer:
3x^2 + 2x
Step-by-step explanation:
x(3x + 2)
We have
x X 3x + x X 2
3x^2 + 2x
Answer:
t =2 seconds
Step-by-step explanation:
We have, a function that represents the height y of the pebble after dropping the balcony as follows :
The pebble lands on the top of a sign that is 16 feet high.
It is required to find the time does the pebble drop before hitting the sign. The above equation becomes,
So, the pebble hits the sign after 2 seconds.
Answer
128
Step-by-step explanation:
multiply the volume value by 128
Answer:
174cm^2
Step-by-step explanation:
Given data
L=9m
W=5m
H=3m
The formula for the total surface area of a cuboid is
SA=2lw+2lh+2hw
substitute
SA=2*9*5+2*9*3+2*3*5
SA= 90+54+30
SA= 174cm^2
Hence the surface area is 174cm^2