1. Let B: 2 1 0 0 -1 4 0 1 0 20 05 20 (a) Find the ij-th cofactor of the following matrix B where i = 2, j = 3. (b) Find the cofactor expansion of B along the second third row.

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A: Given:  NT=21T2-80T+24 , 4<T<34 Tt=6t+1.8T

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Q: How do you know to do this?

A: or you can use Heron's Formula to find the area of the triangle.

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Q: How did it go from step 2 to the answer?

A: The given integral is sec2(4x).

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A: The given function fx=5x. (a) Obtain the function fx=5x shifting 2 units upward as shown below. In…

Q: Hey can you show the solution in a piece of paper or some sort of visual?

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A: Given,

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Q: Will you show me step by step how to answer this, please?

A: Expected value:The expected value of a random variable is the sum of the possible values that the…

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Q: Can you teach people a simpler way to do this?

A: Here, I have taken marked price as $100.

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A: Consider that µd is the true mean difference of worker job satisfaction after the implementation of…

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A: A). a=$3000,  r=3%=0.03  &  k=4.   B). Put a=$3000,  r=0.03,  k=4 & t=7 in At=a1+rkkt, we…

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A: 1) f(g(3))  Since ,  g(3)= 5 So,.     f(g(3))=f(5) = 1 2),  g(f(1))  Since.   f(1) = 3 Then ,…

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A: A linear equation needs two parameters - the slope and the intercept. The slope is the amount of…

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A: Consider the given graph: Observe the following: Maximum input is 2. Minimum input is -3. Maximum…

Q: Explain again step 3 ? I don't understand.

A: It is clear that the function f(t) has jump discontinuity at (n,0) where n is an integer.

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Q: I don't understand the 1 and the 2 bullet

A: To check if any variables are irrelevant, we need to use regression analysis.. We will consider…

Q: 5 (x+14)=85

A: Given equation is : 5x+14=85 Now solve the given equation for x , 5x+14=855x+70=855x=85-70x=155x=3

Q: how do you use math in real life?

A: Use of mathematics in real life

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Q: What makes math difficult for students?

A: Mathematics would be easy if the student know what to do. If a student cannot determine what to do…