Ariana swims 3/4 at swim practice. Her coach asks her to give her distance in twelfth of a mile. How many twelfth of a mile did Ariana swim?​

9/12

Step-by-step explanation:

To get the answer from 3/4 of a mile to twelfths of a mile, you must multiply both sides of the fraction to get the denominator to where you want it to be. In this case, to get from 4 to 12 you have to multiply 4 by 3. Then do the same to the numerator and get the answer 9/12.

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column