. QUESTION: Find the probability that none of the three bulbs in a set of traffic lights will have to be replaced during the first 1200 hours of operation if the lifetime X of a bulb (in thousands of hours) is a random variable with probability density function f(x) 6(0.25- (r-1.5) ) when 1cas2 and f(x) = 0 otherwise. You should assume that the lifetimes of different bulbs are independent.

Q: メ+1

A:

Q: 3.3 31 3 O 3 O 3평 37

A:

Q: Simplify (22/3.2*/3)

A: We have to simplify the given expression.

Q: 4. 3. 4, 8.

A:

Q: dactonive: 2. 2.

A: To factorise x2y2z2-16 ⇒x2y2z2-42 We know that a2-b2=a+ba-b Here a=xyz and b=4

Q: 40 -50-

A:

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: 6.4 3

A:

Q: A-1 does not exist.

A:

Q: 31/2 / 1/2

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: 619 d. 4 10

A:

Q: 9/12+3/24

A:

Q: 10 8. ID 116

A: Introduction: The division is one of the four basic mathematical operations, alongside addition,…

Q: 6.3 3

A:

Q: 198-33

A: Given: 198-33

Q: 1805

A:

Q: 81 (1) 420

A:

Q: 3. What is the type of the function y-(3x+5)(2x+1)? ODecreasing Static Exponential Logarithmic…

A: The given function is y=3x+52x+1. What is the type of the given function.

Q: 44° H. 30

A: It is problem of secant line at circle.

Q: 57-24

A: Given that: 57-24

Q: 2) Expand the following a) Csa2-2b)

A: I have to exapand (5a^2-2b)

Q: In the following diagram below, what is the slope of line AB? 3.

A: Ans:   1) From the graph given we can see the values of A= x1,y1= 3,4 B=x2,y2= 0,0

Q: 29 Using the combination formula expand (5+x)

A:

Q: 3 33. 3 .2 3.

A:

Q: 2sinx +-cafx costX

A: We know that sin^2x+cos^2x=1 2sin^2x+1-cos^2x\cos^2x = 2sin^2x+sin^2x/cos^2x 3sin^2x/cos^2x = tan^2x

Q: 12 16 5n

A: Area of triangle= (1/2) × Base × Height

Q: 6-1 t.

A:

Q: Number 16 1.1

A:

Q: Number 24 1.1

A: According to the given information, it is required to verify that the indicated function is a…

Q: 36-17

A: