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2 years ago

Four students, Kaylee, Xavier, Ruby, and Brandon, line up one behind the other. How many different ways can they stand in line?

Mathematics

1 answer:

elixir [45]2 years ago

7 0

Answer:

4 ways brainliest please

Step-by-step explanation:

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Determine if the specified linear transformation is (a) one-to-one and (b) onto. Justify your answer. T: , T()(,),

xz_007 [3.2K]

Answer:

C. T is not one-to-one because the standard matrix A has a free variable.

Step-by-step explanation:

Given

$T(x_1,x_2,x_3) = (x_1-5x_2+4x_3,x_2 - 6x_3)$

Required

Determine if it is linear or onto

Represent the above as a matrix.

$T(x_1,x_2,x_3) = \left[\begin{array}{ccc}1&-5&4\\0&1&-6\\0&0&0\end{array}\right] \left[\begin{array}{c}x_1&x_2&x_3\end{array}\right]$

From the above matrix, we observe that the matrix does not have a pivot in every column.

This means that the column are not linearly independent, & it has a free variable and as such T is not one-on-one

8 0

2 years ago

Joe says that x

irga5000 [103]

The equations x+5x=16
and x+5x+25=16
No, the equations are not equal. In order for an equation to be equal the equation x+5x=16 contains 25 less than the second equation.

6 0

2 years ago

What percent of the bottle of apple juice is water?

Anettt [7]

percent of water is: 32/80*100= 40%

5 0

2 years ago

(2x - 4)+ ( x + 9)<br> A. 3x+5<br> B.x+5<br> C.3x-13<br> D.x+9

tangare [24]

Answer: option A, 3x + 5

first, i rewrote it and removed the parentheses.

2x - 4 + x + 9

then, i collected the like terms.

3x + 5

4 0

2 years ago

Solve: m-9=3(1/4m+4)-20

FrozenT [24]

Answer: M = -20

Too easy

8 0

2 years ago