I need help for #4 (an explanation would be great)

15 square root of 6i

explanation:

square root of -54 can be re written as square root of -1 and square root of +54, the square root of -1 is basically i, and then the square root of 54 can be written as 9*6 and square root of 9 is 3

3 * 5 (which was outside the square root (see image) = 15 and square root of 6 is left along with the i

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

312312

step-by-step explanation: