Check my answers? --
Solve the system of equations
Y = 8x
-5x -5y = 0
My answer : (0,0)
--
y = 5x - 3
3x - 8y = 24
My answer : (0,-3)
--
y = -3
-3x - 5y =6
My (3,-3)

your all good

Step-by-step explanation:

great job!

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: