Step-by-step explanation:
e = 20sin(πt/4 - π/2)
= 20[(sinπt/4)(cosπ/2) - (cosπt/4)(sinπ/2)]
Used sin(x - y) = sinxcosy - cosxsiny.
= 20[0 - cosπt/4]
Since cosπ/2 = 0 and sinπ/2 = 1.
= -20cosπt/4.
Answer:
10226 ft
Step-by-step explanation:
Let x be the sea level, A horizontal imaginary line on the sea's surface.
-Given that Salton is -226 ft below this line and the mountain is 10000ft above sea. The difference between this elevetions is calculated as;

Hence, the difference between the two elevations is 10226 ft
Answer:
if f(x) = 16-x
then x= 16-x
if you are ask to find the factor
we have
1(16-x)
A = 30,000 - 2000m where A=altitude and m = number of minutes
After 5 minutes A ( altitude) = 30,000 - 2000(5) = 20,000 feet