Answer:
The solution of differential equation =
y = 
Step-by-step explanation:
Given-
y=f(t) models the amount of a substance present, in grams, at time t seconds
when t = 0 then y = 10
the differential equation is


Integrate both side

+ C

when t = 0 then y = 10

C = 



y = 
Answer:
the second one it is a function.
Answer:
This would be True
Step-by-step explanation:
Due to more oil being extracted
A1=2
a2=-8
a3=32
a4=-128
a2/a1=(-8)/2→a2/a1=-4
a3/a2=32/(-8)→a3/a2=-4
a4/a3=(-128)/32→a4/a3=-4
a2/a1=a3/a2=a4/a3=r=-4
an=a1*r^(n-1)
an=2*(-4)^(n-1)
The explicit rule for the nth term of the given sequence is an=2*(-4)^(n-1)
Answer:
no solution
Step-by-step explanation:
Subtract 7 from both sides of the inequality:
|x| +7 -7 < 4 -7
|x| < -3
This has <u>no solution</u>, because an absolute value cannot be negative.