Answer:
9.09%
Step-by-step explanation:
To find percent decrease you have to use this equation:
Initial = 49.5
New = 45
Plug in and solve:
The percent decrease is 9.09%
<em>Hope this helps!!</em>
<em>- Kay :)</em>
Answer:
In radical from 169/50 , 177/200
Step-by-step explanation:
Given:
Find:
Value of 
Computation:
Using quadratic formula:
Value of 3.38 , 0.885
In radical from 169/50 , 177/200
DC-10
At t=0 the altidude is 4500 feet
It's descending at a rate of 150 feet per minute, then each 5 minutes it descends (150 feet/min)(5 min)=750 feet. Then:
At t=5 the altitude is 4500 feet-750 feet=3750 feet
At t=10 the altitude is 3750 feet-750 feet=3000 feet
727
At t=0 the altidude is 600 feet
It's climbing at a rate of 75 feet per minute, then each 5 minutes it climbs (75 feet/min)(5 min)=375 feet. Then:
At t=5 the altitude is 600 feet+375 feet=975 feet
At t=10 the altitude is 975 feet+375 feet=1350 feet
The graph with these characteristics is Graph B.
Answer: The graph B shows when the two planes will be at the same altitude
Step-by-step explanation:
4x2 - 25b2
We can solve it by the squares so
(2x - 5b) (2x + 5b)
2) x2 - 81
The same case is here so
(x - 9) (x + 9)
