Perpendicular equations have negative reciprocal slopes. All that means is " flip " the slope and change the sign. That means if the slope of line A is 7 (or 7/1), then the slope of line B is......" flip the slope ".....1/7.....and change the sign..
-1/7 <== slope of line B
Answer:
6m-8
Step-by-step explanation:
6m-8 I beleive this is what you're looking for
To find the measure angles B, C and F, you will need to know that the sum of all the angles in a triangle total 180 degrees and the sum of all the angles in a quadrilateral equal 360 degrees.
1. Start with what you know: angles I, E, and H needs to equal 180 (it is a straight line). 180 - 56 - 90 = 34 degrees.
H = 34 degrees
2. Angles H, G, and A must equal 180, so 180-34-38 = 108 degrees
G = 108 degrees.
3. Angles G and F must equal 180 degrees (straight line), so 180-108 = 72
F = 72 degrees
4. Angles E, D, F, and C must equal 360, so 360-180-72 = 108
C = 108 degrees
5. Angles J and D must add up to 180 (straight line); so 180-90=90
J = 90 degrees
6. Angles B, I, and J must add up to 180, so 180-56-90=34
B = 34 degrees
Answer:
Your answers are correct except the 7th
7th Answer : 6 + 5a
Step-by-step explanation:
12) 2a - 8 = 14 ⇔ 2a = 22 ⇔ a = 11
13) 2(a + 3)
16) 3x - 1 = 7 ⇔ 3x = 8 ⇔ x = 8/3