There is a typo in the equation:
The equation need to be f(t)= 28t-t2+4
You need to calculate the derivative of f(t): f'(t)= 28-2t
f is increasing if f'(t) is positive ==> 28-2t>0 ==> t<14
f is decreasing if f'(t) is negative ==> 28-2t<0 ==> t>14
f reach its maximum when f'=0 ==> 28-2t=0 ==> t=14
The concentration is increasing between for 0 < t < 14
The concentration is decreasing between for 14 < t < 24
The maximum is achieved when t=14
I hope this will help
Answer:
confusion
Step-by-step explanation:
Complementary angle= two angle whose sum is 90°
a= x +27
b= x
2x+27=90°
2x= 90-27
2x=63
x=63/2
x= 31.5 or 31°30'
b= 31°30'
a= 31.5+27= 58.5---->58°30'
Answer:
1638392772127273930337733930282823829393
it looks correct to me
ps. i hate savvas realize
