Apropeller rotates 6 times every 15 seconds. based on this information, which of the following could not be true?

a. the propeller rotates 30 times in 90 seconds.
b. the propeller rotates 24 times in one minute.
c. the propeller rotates 18 times in 45 seconds.
d. the propeller rotates 12 times in 30 seconds.

understand that i don't know the answers

will someone answer his question

answer: '

the distance between points l and m

step-by-step explanation:

answer: 10 meter

step-by-step explanation:

need details

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