8 1/3 = ab^-1, 1.8 =ab^2
w = 70.25
y = 2 (Divide each side of the equation by -45)
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
88
30
w = 70.25
13
Your question is not very clear. Are you asking: solve for x where negative 4 over x equals negative 20. x equals 1/5 (one fifth)
y = 2 (Divide each side of the equation by -45)
Adding a negative number to a negative number makes a larger negative. In order to solve this you add the numbers together as a positive then add a negative sign.
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
30
88
A number to a negative power is equal to One divided by number to its positive power. So, x^-2 is equal to 1/x2.
Question 3C: Four minus seven equals negative two.
By elimination: x = 3 and y = 0
b = 14