One of the solutions to the equation 5x^2+bx+12=0 is − 4/5. find the other solution.

x=-3

Step-by-step explanation:

Using Vieta's theorem (X1+X2=-b/a, X1 * X2=c/a), we can plug in the values to create:

-4/5 * x = 2.4 <- (I got this by dividing 12 by 5)

Multiply both sides by 5 to get -4x=12, and divide by -3.

x = -3

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5