Ais a 2×5 matrix with two pivot positions. (a) does the equation axequals=0 have a nontrivial solution? a. yesb. no(b) does the equation axequals=b have at least one solution for every possible b? a. yes
b. no

(a) A (b) A

Step-by-step explanation:

Ax = 0 does have a

non—trivial solution ,option A

and Ax = b does have at least one solution for any

given b..option A

For a 2*5 matrix with two pivot positions .If a matrix is in row-echelon form, then the first nonzero entry of each row is called a pivot, and the columns in which pivots appear are called pivot columns. ..

For example

when Ax = 0

x₁ + 2x₂+ 4x₃+ 5x₄ -2x₅ = 0

x₂ + 3x₃ + x₄ +2x₅ = 0

The system of equation has a non trivial solution

And for any value of B ,the system of equation have at the least one possible solution

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60