18658 55 A C H. A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates the probability that any independent dealership will have the car will be 28%. We are interested in the number of dealerships she must call. a. In words, define the random variable X. b. List the values that X may take on. c. Give the distribution of X. X~ d. On average, how many dealerships would we expect her to have to call until she finds one thath 2. e. Find the probability that she must call at most four dealerships. 1 3 4 f. Find the probability that she must call three or four dealerships. 16 17 19

Q: y 35 1 N 34

A:

Q: 16. Find mBC 240 D

A:

Q: D pls

A:

Q: 14. The vectors a and b are such that |a| = 3, |b| = 5 and a. b = -14, then |a – b| = %3D A 62 B V62

A: Solution: Given vectors a and b such that a=3,  b=5 and a·b=-14

Q: Find A. A = (3A)-1 [ -3-2 4 2

A: Let us consider that                     A=abcdWe have                   (3A)-1=-3-242 ⟹…

Q: Find B - A. - 7 B = 2 6 A = 2 6 6 - 4 B-A =

A:

Q: y= ektan

A: y=ek tan x                 y'=ddxe k tan x    =e k tan xddxk tanx…

Q: what about  c and d please

A: We will use graph and  concept of limit to find answer for C and for D combine all results of 1st…

Q: (an)) ヘー 4n

A: Apply the ratio test

Q: Write tEf-1 without sigma notation. 6k

A:

Q: Find A. A= (4A)-¹ = 3 2 22

A:

Q: 3 8 = 5 x y

A: Given equation is: 3x-8y=5 We have to solve for y.

Q: A 46 20 В C

A:

Q: Answer everything from A to D, please

A:

Q: 3 4 B 2.

A: 23.(i)

Q: dzdxdy

A:

Q: Find A. -1 1 (4A)-1 = -4 2 A =

A: Solve the following

Q: Given sec 8= √ 2 what is cos?

A:

Q: a. Y+3=7

A: The value of Y

Q: X=7, Y=24 and Z=25

A: Use trigonometric ratio

Q: 2 3x+ АВ w B 10 O 20

A:

Q: fin ind AT find B

A:

Q: (3) ² What is the exact value of tan

A: Given trignometry function tan( 2π3 )

Q: S P 45 V2 30 R Q

A:

Q: and

A:

Q: 30 630

A: In this problem, basic right-angle triangle properties is used to calculate the values of a,b and c

Q: D A P32 B C

A:

Q: what about b, thanks

A:

Q: с 4 B 12 A

A:

Q: 2 1.Find f L 3x² ydxdy

A:

Q: A. AC = %3D C 21 10 B

A:

Q: コェ tx

A: we have to divide the following

Q: dr Vr – 9 3

A: We can find the integration as below.

Q: 4dy 3y +2

A: Given. f(x) = 4/(3y+2) We need to calculate integral of above function.