The rise or an increase in altitude is represented by positive sign and a decend or decrease in altitude is represented by negative sign.
First the helicopter descended 1200 feet. So the change in altitude will be -1200 feet.
Then the helicopter rose by 800 feet. So the change in altitude will be 800 feet.
Finally the helicopter descended by 450 feet. So the change in altitude will be -450 feet.
The net change in altitude will be the sum of all the above 3 changes.
Change in altitude = -1200 + 800 - 450 = -850 feet
The negative sign indicates a descend i.e. loss in altitude. So the net change in altitude was a loss of 850 feet.
Answer:
27 days
Step-by-step explanation:
20 
÷ 
= 27
Answer:
Step-by-step explanation:
x^3 = 1/8
Taking the cube of both side
x^3 = 1/(2)^3
(x)^3 = (1/2)^3
Eliminate ^3 from both sides
x = 1/2
Answer:
2.6 pounds
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
125% = 1.25
1.25 n = 30
n = 24
25% x n = .25 x 24 = 6
Please check my other articles in my site, just copy and paste this word to google search engine: learningandassignments diy4pro.
Hope it helps you.
