Answer:
14
Step-by-step explanation:
a = 3
b = 4
Answer:
2,000 ≥ 821+x
Step-by-step explanation:
it is said that the maximum weight the elevator could hold is 2,000, so the weight in the elevator should be 2,000 or less then 2,000.
It is said that already 5 people are inside with a weight 821, in this case we only care about the weight
the inequality will look: 2,000 ≥ 821
now they asked us how much more weight can the elevator can hold
lets make (x) represent the extra weight
x= extra weight
the equation will be 2,000 ≥ 821+x
Answer:
Step-by-step explanation:
Written in: y=mx+b
Problems of this sort are frequently found in physics. If you study calculus or physics you'll learn how to create the equation representing the velocity of an object in flight.
Here, you don't need to calculate velocity, but rather time. Start with this equation:
v = v0 + a t^2, where v is the velocity at time t, v0 is the initial velocity, a is the acceleration due to gravity (denoted by g instead of a), and t is the elapsed time.
You are told that v0 is 15 ft/sec. Set v = to 0, as the ball stops moving for the tiniest instant at the top of its trajectory. Use g = - 32 ft (per second squared).
Then 0 = 15 ft/sec - 32 [ft/(seconds squared)] t.
Solve this for t. This is the time required for the ball to come to a complete stop at the top of its trajectory.
Finally, multiply this time by 2, since the ball begins to fall and returns to its original height.