In Z10, express the following sums and products as [r], where 0 < r < 10. (a) [15]+ [24] (b) [15]. [14] (c) [13]+[138] (d) [13][138]

Q: (13²-1| + |3²-3) da

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Q: (a) (b) 2 3 ง 2 10 2 5 : 3 9 + 4 12 4 15 2 3

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Q: o use divisibility in this problem but i am not sure where to start. Prove or disprove (with a…

A: Introduction: If a and b are integers, a divides b if c is an integer and ac = b. The symbol a|b…

Q: uppose Var(X) = 93, Var(Y) = 98, and X and Y are independent. What is Var(.6X + .4Y)?

A: Answer: - Given,  Var(X) = 93, Var(Y) = 98, and X and Y are independent.                 What is…

Q: Suppose Var(X) = 88, Var(Y) = 17, and X and Y are independent. What is Var(.28X + .72Y)?

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Q: Perform this subtraction: (- 25 9x? – 5x) - ( 9a + x? + 8) |

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Q: Find a counter example for the following: For all integers x, if 12 | x^2 then 12 | x.

A: To find a counterexample for the statement "For all integers x, if 12 | x^2 then 12 | x," we need to…

Q: Fill in the missing numbers. X 5 7 764 88 2 2 32 829 4 1 7 9 | | o | 8

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Q: (t + 7)² – 49 lim

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Q: Evaluate the following. ||5-91-13+2||

A: Step 1: Step 2: Step 3: Step 4:

Q: Suppose Var(X) = 4, Var(Y) = 78, and X and Y are independent. What is Var(.58X + .42Y)?

A: Answer: - Given, Var(X) = 4, Var(Y) = 78, and X and Y are independent.                What is…

Q: Simplify the radeal expression 6.

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Q: In Z7, evaluate the following expressions. 3- (2 x 5) 2 × 3 × 4 5 x 3 3+4+5 3² +4² 1. 1 2. 2 3. 3 4.…

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Q: 7+ [9 x (7÷1)]

A: 7+ [9 x (7÷1)]