9.5.1. The waiting time in milliseconds, W, for accessing one record from a computer database is the continuous uniform (0,10) random variable. The read time R (for moving the information from the disk to main memory) is 3 milliseconds. The random variable X milliseconds is the total access time (waiting time +read time) to get one block of information from the disk. Before performing a certain task, the computer must access 12 different blocks of information from the disk. (Access times for dif- ferent blocks are independent of one another.) The total access time for all the information is a ran- dom variable A milliseconds. (a) What is E[X]? (b) What is Var[X]? (c) What is E[A]? (d) What is oĄ? time? (e) Use the central limit theorem to estimate P[A > 116ms]. (f) Use the central limit theorem to estimate P[A < 86ms].

Q: 1-V3x+2 dx 1+v3x+2

A:

Q: Solve   (2/x)+(3/y)=13  ;  (5/x) - (4/y) = -2

A:

Q: Solve 3(k−4)=18

A:

Q: 27. Solve: 2 + V12 – 2x = x

A:

Q: Solve t.

A:

Q: y = 3x-2x²+x-5; y""

A:

Q: Q5) solve using crammer's rule ? x y and 1 -1 13 2 y o 3. 2 -6 -4 1

A:

Q: Solve: 4. = 4 6. 3

A: find the value of x

Q: sec² (w) - -dw 4w2 +1 10.

A:

Q: solve for v 5(v-8)=3v-38

A: The given equation is

Q: solve for v -2v+18=2(v-7)

A:

Q: Solve for the mL CAB B (6x-125) A (2x +39)⁰ POB M

A:

Q: constat Solve by ussag alktytb(x)+ abt +c me thed of abbritrseky

A: Partially Differentiating with respect to x, ∂u∂x=a+b ---(1) Partially Differentiating with respect…

Q: Cco s 2x -2) Differentiate y= 3x e 2.

A: The objective is to differentiate y=3x2ecos2x-22

Q: 2. Solve: V3x + 4 = x 1. 4 2. 4,-1 3. -1 4. No solution

A:

Q: Solve 4(a - 2x) = 5x +c/3for x.

A:

Q: Solve  7(a - 4) = 8(a+5)

A: Given, 7a-4 =8a+5  We have to solve the above equation

Q: solve: U = F (b+R) for b

A: In given equation firstly divide by F on both sides and find the value of b.

Q: F:1: Solve 12(s+10)-140 (s+1)² +400)

A:

Q: olve for w 2w2 +18w+28=(w+7)2

A: Given: 2w2 +18w+28=(w+7)2  ⇒2w2 +18w+28=w2+14w+49⇒2w2 +18w+28-49=w2+14w+49-49…

Q: = 48x Ans: 9 = A (2x+s) 2-52 +B CaxS) -6(2x+5) -15

A:

Q: VZ A2 + B2 =0 A2 + VZB2 + C2=0 B2 + VZ Cz = 0

A: We have to solve the given system of equation.

Q: (4+38)-(9 -J2) Rectangular ?

A:

Q: Solve RESISERE d³x dt3 +79²x dt² PERS + 6x = 0

A:

Q: solve V18 (b) V8I e) V? 23. (а) 3V16 (c) V18 (b) V25 24. (a) 2V8T (c) V#

A: 23. (a) Consider the given expression, 3163 factorize the term inside the cube root, and simplify…

Q: ve for C: F = C + 32 - C = ²F-32 b. C = (F-32) C. C

A: Given: F = 95C+32

Q: x4 + 3x2 + 4 dx (x + 1)²

A: Consider the given: ∫ x4+3x2+4x+12dxOn division: x4+3x2+4x+12=x2−2x+6+−10x−2x2+2x+1∫…

Q: (15x - 8) 226

A: Given,

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.