20 (a) Is b a positive, negative, or zero? State your answer and briefly explain/justify why. You can be incorrect but earn points for a good explanation (the points are in the explanation). (b) Determine if axb is directed into or out of the page. Again, state your answer and briefly say why.

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A: The given equation,a+b-c=a-c+bwhere a,b and c are whole numbers

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A: we use linearity of T  to find the value of T at 1, x, x^2

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Q: Example Let A= B = 1. proof |A x B| = |A| × |B| %3D

A: Solve individually left hand side and right hand side expression to prove the given expression.

Q: 2- A^2 is valid if A is square and not equals. * O True False

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A: Here we will see how given statement is false,

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A: Given : A - B ⊇ {3} {2} ⊆ B So, A ∪ B = {2,3} {2,3} ⊆ A ∪ B

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A: Here, speed is time dependent. That is we can say that speed S depend on time t. That is S=S(t)

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A: Givenstatements are If p-value = .200 and α = .05, then you would Reject H0. If p-value = .023 and α…

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A: The objective is to solve the differential equation 2u''+3u'-2u=te-2t where u0=0, u'0=-2 Now let's…

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Q: using the false - position to deter mine the Voot of the eqution fcx) = 0-7 x5-x* +44 X-90 X+82 X-25…

A: Suppose the root of the equation fx=0 in lies in the interval xl,xu. To find the root  by the…

Q: 2. Which tables a.

A: " Since you have asked multiple question, we will solve first question for you. If you want any…

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A: Given : Claim : The machine after maintenance no longer makes 5g bars on average.

Q: A positive statement A cannot be evaluated using the scientific method. B) is a declaration of…

A: In hypothesis testing, researcher makes statement to test it on some level of significance

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Q: De ter mine madrix. or tollaweng Ohe null space 2 2 2 -3 - 1 | -5

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Q: d.Computation e. Decision (Reject Ho or Failed to reject Ho) f. Conclusion

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Q: 3.) Determine whether the given statement is always true, sometimes true, never true, or if you need…

A: topic - statement

Q: Example: Solve the Ajatam af lincas cquatioma, i exist: Sinsas cqutima, y +4% = 2, +3 +5X= -2…

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Q: 04. + 2- 3r-11 (a) Show that -0 can be rearanged as

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Q: b) 4) Define the variables a,b and c as: a-5, b=-5, and c-2a+b Evaluate: 6a b abia + Blatblic a)…

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Q: 4. (0} is open in Y. a. True b. False

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A: 1) Given: The equation 7x-2=30 . The value of x which satisfy the given equation can be found out…