X=−6.58578643, −9.41421356 what is the rounded decimal of these two?

Depends on which place you're rounding to:

Step-by-step explanation:

Rounded to the tenths place (one number after the decimal point):

x = -6.6, -9.4

Rounded to the hundredths place (two numbers after the decimal place):

x = -6.59, -9.41

Rounded to the thousandths place (three numbers after the decimal place):

x = -6.586, -9.414

I don't think you'd need to round to the ten-thousandths place. If you do lemme know and I'll edit my answer. But you should know if the next digit is 5 or greater like in 15 you'd round up. If it's less than 5, you round down.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12