Pls help I need the simplified equation and answer

5/(1/2)(3.9)(4)² - 2/(2/5)(3.9)(4)² - 1/(3/5)(3.9)(4)² - 1/2(3.9)(4)²

Convert mixed numbers to improper fractions,

11/2(3.9)(4)² - 12/45(3.9)(4)² - 8/5(3.9)(4)² - 1/2(3.9)(4)²

Remove bracket,

11/2 × 3.9 × 4² - 12/45 × 3.9 × 4² - 8/5 × 3.9 × 4² - 1/2 × 3.9 × 4²

Factor out common term 3.9 × 4²,

3.9 × 4² (11/2 - 12/5 - 8/5 - 1/2)

Times,

3.9 × 16

Answer,

62.4

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.

5y

step-by-step explanation: