Well if you’re looking for y then
x=4y + 7
-4y
x-4y=7
-x. -x
-4y=-x+7
_______
-4. -4. -4
y= 4x - 7/4
i’m pretty sure :)
Complete Question:
Find the attached image for the diagram of the question
A. 3 B √34 C √65 D √41
Answer:
The length of x, is √65
Step-by-step explanation:
To determine the length, x, we are going to apply Pythagoras theorem;
Consider triangle ABC;
BC² = AB² + AC²
5² = 3² + AC²
AC² = 5² - 3²
AC² = 25 - 9
AC² = 16
AC = √16
AC = 4
Now, we can calculate length, x
Consider triangle ACD
AD² = AC² + CD²
x² = 4² + 7²
x² = 16 + 49
x² = 65
x = √65
In a parallelogram, opposite sides are the same: we have
Subtract 7y from both sides:
Add 29 to both sides:
Divide both sides by 3:
The product of the slope of perpendicular lines is always -1