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Q: a) Let A be a 2 × 2 matrix. Show that for ALL choices of scalars a, that if A = aI2, then AB = BA fo...

A: NOTE: As you have posted question with multiple subparts, we will answer the first question for you ...

Q: Will someone help me with this problem? Sub parts A,b,c

A: 9 a

Q: Write an equation in slope-intercept form and in standard form for the line passing through (-1,6) ...

A: First we find slope from the line x+3y=7.We will write it in y=mx+b form , then find m.m=-1/3

Q: 5.7 to 3.8 Write the given ratio as a fraction in simplest form

A: Simplify as follows.

Q: Factor: (2X- 3Y)(6X + 5Y)

A: Given:

Q: Will someone help me with this problem? #13

A: Given f(x) = -9x,

Q: Factor the sum or diffrence of two cubes. a. x3-8

A: Given expression is x^3-8 . We can write 8 =2^3

Q: A carpenter purchased 50 ft of redwood and 70 ft of pine for a total cost of $273. A second purchase...

A: A carpenter purchased 50 ft of redwood and 70 ft of pine for a total cost of $273. A second purchase...

Q: A farmer has 240 feet of fence to enclose a rectangular area. What dimensions for the rectangle resu...

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