Answer:
20m
Step-by-step explanation:
Given the formula that modelled the height given as;
h=30+40t-5t^2
At t = 4s
h=30+40(4)-5(4)^2
h = 30+160-80
h = 160-60
h = 110m
At t = 2s
h=30+40(2)-5(2)^2
h=30+80-20
h = 110-20
h= 90m
Difference in height = 110-90 = 20m
Hence the height is 20m higher above the ground at 4s than at 2s
Answer:
D
Step-by-step explanation:
Just divide
Answer:
|a-c| meters
Step-by-step explanation:
If I am piloting an airplane to prepare for landing, I change the plane's altitude from a meters to c meters, then the expression that represents the distance between two altitudes is given by |a-c| meters, not by |a+c|.
For, example if the altitude of the plane changes from 1000 meters to 500 meters for preparing for landing then the distance between those two altitudes is |1000 - 500| = 500 meters. (Answer)
But using the expression |a+c|, I will get the wrong answer as |1000 + 500| = 1500 meters.
Answer:
Step-by-step explanation:
Alright, lets get started.
Principal amount Joshua borrowed, P = $ 25000
rate of interest, r = 1.5 %
time, t = 2 years
simple interest =
simple interest =
Means $ 750 will be the interest of Joshua's loan.
So, Joshua needs to repay the SBA =
Hence, Joshua will repay $ 25750 to SBA after two years. : Answer
Hope it will help :)
It could exist at either 15 or at -25. Both of these numbers are 20 away and distance is often measured in absolute terms.