Suppose a man who is 6ft tall is standing below a lamppost that is 20ft tall. the man is walking away for the lamppost at a rate of 5ft per second. 1. if the man is moving 5ft per second, make a conjecture as to the rate that his shadow is moving.

2. how far away from the lamppost is the man after 8 seconds?

3. how far is the end of his shadow from the bottom of the lamppost after 8 seconds? use similar triangles to solve this problem.

the size of the resulting matrix is 1-by-3.

step-by-step explanation:

the size of the two matrices given are as follows:

no .of rows of matrix 1 = 1

no .of columns of matrix 1 = 3

no .of rows of matrix 1 = 3

no .of columns of matrix 1 = 3

to find the size of the resulting matrix without actually solving the multiplication of the matrix, this is what you do:

if resulting matrix = matrix 1 * matrix 2

no. of rows of the resulting matrix = number of rows of matrix 1

no. of columns of resulting matrix = number of columns of matrix 2

note: the order of the matrices matter!

7.3

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!