Mathematics, 06.05.2020 00:04 lolweapon
Consider the system as Axequals0, where A is a 15times19 matrix. Choose the correct answer below. A. No. Since A has 15 pivot positions, rank Aequals15. By the Rank Theorem, dim Nul Aequals15minusrank Aequals0. Since Nu l Upper A equals 0, it is impossible to find a single vector in Nul A that spans Nul A. B. Yes. Since A has at most 15 pivot positions, rank Aless than or equals15. By the Rank Theorem, dim Nul Aequals19minusrank Agreater than or equals4. Since there is at least one free variable in the system, all solutions are multiples of one fixed nonzero solution. C. Yes. Since A has 15 pivot positions, rank Aequals15. By the Rank Theorem, dim Nul Aequals15minusrank Aequals0. Thus, all solutions are multiples of one fixed nonzero solution. D. No. Since A has at most 15 pivot positions, rank Aless than or equals15. By the Rank Theorem, dim Nul Aequals19minusrank Agreater than or equals4. Thus, it is impossible to find a single vector in Nul A that spans Nul A.
Answers: 2
Mathematics, 21.06.2019 19:30
Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?
Answers: 1
Mathematics, 21.06.2019 20:20
Which of the following best describes the delian problem?
Answers: 3
Mathematics, 21.06.2019 21:00
Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)
Answers: 1
Mathematics, 21.06.2019 22:00
Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120
Answers: 3
Consider the system as Axequals0, where A is a 15times19 matrix. Choose the correct answer below. A....
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