Answer:
P(0≤T≤400)=0.3296
Step-by-step explanation:
we know probability density function is
probability that bulb will fail within first 400 hours
P(0≤T≤400)=
P(0≤T≤400)=
=
=
=1-0.67032 = 0.3296
so about 32.96 % bulb will fail within 400 hrs.
Answer:
y = 1.8
Step-by-step explanation:
What do the up arrows mean? I may be able to help if you tell me.
Answer: 34x16
I think
Step-by-step explanation:
Tan^5x=tan^3x∗tan^2x
sin^2x+cos^2x=1
tan^2x+1=sec^2x
tan^2x=sec^2x−1