Answer:
Step-by-step explanation:
The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1
m1(m2)=-1
-m/3=-1
m=3
So we know our line has a slope of three so
y=3x+b, we can solve for the y intercept, b, using point (-2,8)
8=3(-2)+b
8=-6+b
b=14, so our line is
y=3x+14
11/12 divided by 5/7 should be 0.02619047619 you can double check it though
Answer:
Step-by-step explanation:
<u>Diagonal BD of a given rhombus is angle bisector of ∠ADC, so:</u>
<u>Substitute the values and solve for x:</u>
- 4x - 12 = 3x + 6
- 4x - 3x = 6 + 12
- x = 18
<u>Find the value of ∠ADC:</u>
- m∠ADC = 2(4*18 - 12) = 120°