a) Evaluate: 21-12 + (4-10)

Q: Perform each subtraction: a) 7 - (-2) b) (-7) - (+2) c) 10 - 2 d) (- 10) - (-2)

A: Given : 1)7-(-2) 2)10-2 3)(-7)-(+2) 4)(-10)-(-2). We need  to perform subtraction.

Q: Evaluate: 40!/4!38!.

A: To evaluate 40!4! 38!. By the definition of factorial,  n!=n ×(n-1)×(n-2)×...×3×2×1 That is  40! =…

Q: Simply :7(8+6)

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Q: Evaluate:

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Q: What is the GCF of the following expression? * 50a³b -8ab O 2b O 8ab O 4ab 2ab

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Q: Simplify the following expression. * Li Ve +t+ldt

A: Given expression: Let I=ddx∫x46t2+t+1dt Using Leibnitz theorem,…

Q: Evaluate: 4 dx. -3

A:

Q: what is indicated operation of 18+23?

A: Given 18 + 23

Q: a) 5+3+1+(-1) ++ (-33)

A:

Q: i want 7-11 all ans

A: As per our guidelines I can solve only one question at a time. Kindly post the remaining questions…

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

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Q: Uus algebric techniques to determine whether -227-32³ +92 is even or neither. H

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Q: Evaluate: 12!/8!

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Q: You have 12 bags of gum.        Each bag has 8 packs.        Each pack has 6 pieces of gum. a)…

A: Given, Number of bags containing gums=12. Number of packs in each bag=8. Number of pieces of gum in…

Q: Write out and evaluate: (6-k)*

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Q: Evaluate {Invr +1}. Select one: A. B. + 1) 2( + 1) C. O D. 2+1 O ET

A: