Answer:
5
Step-by-step explanation:
Answer:
volume = about 117.81 feet^3
density = 0.763942 lb/ft^3
Step-by-step explanation:
this is if the piece of pine is cylindrical
After 3 seconds it's been descending for 3 seconds at a rate of 2 feet per second. So it's gone down 6 feet, and now it's at a height of 67. So it started off at 73.
<span>Its height after x seconds is 73 - 2x. (73 to start off with, minus 2 feet per second that's passed.) </span>
<span>After 8 seconds it will be at a height of 73 - 2*8 = 73 - 16 = 57.</span>
Answer:
x = 10
Step-by-step explanation:
7x - 15 = 4x + 15
7x - 4x = 15 + 15
3x = 30
x = 10