Answer:
y = 7/6 * x - 1/6
Step-by-step explanation:
6x + 7y = 126
y = (- 6/7) * x + 18
slope: -6/7
A line perpendicular to another has a slope that is the negative reciprocal of the slope of the other line
slope' : 7/6
y = mx + b
8 = 7/6 * 7 + b
b = (48-49) / 6 = - 1/6
equation: y = 7/6 * x - 1/6
Answer:

Step-by-step explanation:
Based off of what we do know, if we can find length DB we can use the pythagorous theorem (I will be assigning the variable z)

First equation is for triangle ABD
Second is for BCD
And the last one is for ACD
Substitute
and 

As discovered before

1.7 = <span>One and seven tenths
5.62 = </span><span>Five and sixty-two hundredths</span>
The value of 6 is 6 hundreths