Let X be a random variable with the following probability distribution |-3 6 9 1 1 1 f (x) 6 3 A.) Find E(X). B.) Calculate E[(2X + 1)²)- O 5.5 4.5 6.0 6.5 C.) Find Var(X).

Q: Solve the following. 3) -18 = 8b – 2b

A: Topic = Linear equation

Q: 8 2x +3 9. x+7

A:

Q: 2. How many liters of a 20% alcohol solution should be added to a 450 liter solution which contains…

A: The objective is to determine how many liters of 20% alcohol are to be added to a 450 liter solution…

Q: View Instructions 7. Mr Campbell had 8 packs or erasers. Each pack had 9 erasers. If he gives out…

A: Answer and explanation is given below...

Q: 2. Vos? |.6 = 0,8Ups - UDs? 0.6 Ups - 2

A:

Q: 8. a) For the equation K= b) For the equation R = P-R 3 ; solve for R (please show all your work)…

A: Given query is to solve the expression for the indicated variable.

Q: Solve for s and simplify your answer. -2 = 4 3 S

A: we have given an mathematical expression as follows -2 = - 4 s/3 we need to solve it for s

Q: 8) Solve the following equation for x Give answer as a fraction in lowest terms 52x5* – 5 = 0

A: Given problem is

Q: 9. There are 5 roads leading to a town from a village. The number of different ways in which a…

A:

Q: 17 12

A:

Q: 4* – 2**3 x+3 :- 12

A: The given equation,       4x-2x+3=-12

Q: Solve the following: a. (37!)/(33!) = b. 10 P7 = C. 9C6 =

A: Ans-We have to solve the three parts of the question. a) To simplify the expression 37!33! we can…

Q: Use the five-step method to solve the following. 1.) The sum of two consecutive odd numbers is - 52.…

A: Let us take the two consecutive odd numbers are 2n+1 and 2n+3. We have that sum of the two numbers…

Q: (x+y)

A:

Q: made by repeating the basic pattern 5 times. The length of a red beac of a white bead is 2.2 cm.…

A: 1.  The basic pattern is repeated 5 times, therefore length of bracelet is 30 that is 5 times the…

Q: Bx Bんt2

A:

Q: 8. What would the equation be if Carolyn were paid: a. $15 flat fee, plus $7.50 per jersey sold? b.…

A: (a) The given equation is P=nx, where n is the number of jerseys she sells and x is the price per…

Q: Solve the equation |x – 12|– 5 = 17 A. X = 10 and – 34 B. x = -10 and – 34 C. x = 10 and 34 D. x…

A: Given equation is x−12−5=17. We have to solve the given equation. Add both sides 5 and further…

Q: Solve the equation 22+1 = 32 for x O a.4 O b. 0.5 O c.2 O d. - 2

A: 22x+1 =32x=?

Q: as a part of a school contrst sarah and luis are aying a math game. sarah must pick a number between…

A: Let x be the Sarah's number. Given that, "if I subtract 5 from my number, multiply that difference…

Q: 5 Your assistant made a few mistakes while trying to solve some clues. Spot them. (Use v or X) Step…

A:

Q: A= AB ВА 3 05-21 -7 4 -3 2-6 and B = -5 6 9 22377 А -2 1 -1

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.