19. Explain why it is not valid to evaluate 22 + 3 77 using the canceling shown in the following step: warning, incorrect: 22 + 3 2 + 3 7 = 77 1078210x2 515 77 Show how to evaluate 223 correctly. (Is cance- ling possible or not?)

Q: 50! 17! x17! x 16

A: Given,          50!17!×17!×16!=

Q: Simplify: 9C3 A B C D 31 (9! (6!)3! 31 (61) 91

A: It is known that: Crn=n!n-r! r!. We need to evaluate: C39.

Q: (²²) + (²) + („) z + (†) − (†) Evaluate:

A: According to the given information in this question We need to evaluate the given

Q: Evaluate:

A:

Q: The following is an example of commutative property for multiplication: 348 + (74-18)(60 + 33) = 348…

A:

Q: What is the value of 18C16?

A:

Q: Perform the indicated operations. (а) 101112 х 11012 (b) 10248 x 27768

A: (A) 101112 ×11012           10   1    1    1            ×1   1    0   1            1  0   1   1   1…

Q: where did you get (18+6k), (120+2k) and (-120+6) from? and why do you use those numbers

A: The given system of equations

Q: When does 7 + 7 = 2 is true? Elaborate.

A: we have to prove that when 7 + 7 =2 ?? We use Congruence Modulo.

Q: Evaluate: 5 − 7 + 9 − 11 + 13 − 15 + ⋯ − 127

A: We have to evaluate :: 5 - 7 + 9 - 11 + 13 - 15 + ... - 127

Q: what is the coefficient of b5c2 in (c + b)7

A: We know that  (a+b)n = C0nanb0+C1nan-1b1+C2nan-2b2+...+Cn-1na1bn-1+Cnna0bn Hence (c+b)7 =…

Q: Evaluate: (23 + (6+ 2³)) – 11(-6 – 5)

A:

Q: -1 then Create afplot lover -34AC37 Confaining the geagh 4) Plar, f/X-11, and flaul

A: The given function is ρx=1+x2-1. ρx=11+x2 Obtain the functions, ρx-1 and ρx+1. ρx-1=11+x-12…

Q: Sandra calculates 5(3 + 7) by writing 5 3+7=15+ 7 = 22. Solomon does it by writing 5(10) = 50. Which…

A:

Q: hat is the value of the expression 32 x (23 + 4) / 22?

A: Given that the expression is                                         To find the value of the given…

Q: I am unsure how to simplify this expression

A: Simplifying the given expression: