Brainliest + points!

use the simple interest formula, i = prt, to find the simple interest:

julia invested $4,000 in a mutual fund with the simple interest rate of 3.5% per year. how much interest would she earn after 2 years?

a.
$140

b.
$280

c.
$1,400

d.
$2,800

Step-by-step explanation:

since you are already given the formula just plug in the numbers.

the only tricky part is r=rate must be in decimal form!!!

I=4,000(.035)(2)

I=280 (answer)

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!