Simplify each of the following expression. (8!7!) 5!4! 7. 12! 3!2! 10 8. 4!3! 45! 0. 43!5!

Q: a. Find the Cramer-Rao lower bound for the variance of unbiased estimators for 0. b. Given the…

A: The Cramer Rao lower bound is given by 1E∂ log L∂θ2

Q: Evaluate I = dr 9 + 16x6

A: To evaluate the integral.

Q: Janice makes 3 identical charm bracelets for her friends. Each bracelet is made with 2 charms and a…

A: Given No. of bracelets = 3 No. of charms in each bracelet = 2 Cost of Charm = x Cost of chain = $4

Q: The temperature was falling 3 degrees every hour. How many degrees had the temperature dropped after…

A: In 1 hour it drops 3 degrees  So, in 8 hours it drops (3x8)=24 degrees

Q: Find the last three digits of 240 + 341 + 442.

A:

Q: 7>12

A: We have to find solution of y

Q: Write an expression to represent: The sum of ten and the quotient of a number r and 6.

A:

Q: Subtract the product of 8 and 6 from a number. Then divide the result by the difference of 46 and…

A:

Q: find fy CX,Y) it (x,Y)=x2-8xy- 2y?

A:

Q: Please answer D

A: (a) Given that the percentage of stadiums have just built in the past 20 years is, P=15%=15/100=0.15…

Q: Answer 11

A:

Q: Divide. y + 10y +21 y +7

A: Dividey2+10y+21y+7

Q: What is 6 times 4

A:

Q: 323four-211four=?

A:

Q: Answer 20

A:

Q: Please answer D7 and D9

A: Solution-: We want to find D7=? and D9=?

Q: Find the last three digits of 240 + 341 + 442.

A: Find the last three digits of 2^40 + 3^41 +4^42.

Q: What's 2 times 2

A: It's  just multiplication,

Q: what is 2 times 54?

A: We have compute 2 times 54 that 2×54. Hence, 2×54=108

Q: find y= 火243X Vうxt

A: given that y=4x2+3x5x+1 find the derivative

Q: 8. Find the four consecutive numbers whose sum is 74

A: We need to find the four consecutive numbers whose sum is 74.

Q: _*3 = 234. %3D

A:

Q: Write 21/9 as a mixed number

A: 21/9 can be written as  (18+3)/9 = 18/9  + 3/9