Answer:15
Step-by-step explanation:
rectangle so we know two sides are equal and other two side are equal so we have X+X+X+4+X+4
so make it algerbra 4X+8=52
get rid of the 8 by subtracting from both side
4X+8-8=52-8
4X= 44
divide both sides by 4 to get rid of the 4
so X= 11
so two sides are 11
and two sides are 11+4 or 15
<span>If the triangle has an obtuse angle (>90 degrees), it can be classified as an obtuse triangle Not sure where the 42 inches is used Hope this helps</span>
A B
D C
vectors
AB = DC
AB (-2-7 ; 3-1) => AB (-9 ; 2)
DC (1-x : -7-y)
1 - x = -9 => x = 10
-7-y = 2 => y = -9
D(10 ; -9)
Answer: slope=3 Y=1
Step-by-step explanation:
Step 1: Find two points (0,2) & (1,5)
Step2: Y2-Y1 over X2-X1
5-2. 3
——- = ——
1-0. 1
(1,3)
Answer:
a=5, b=-2
Step-by-step explanation:
If you simplify the equation, you get:
3ax +6 -4x -4b - 11x - 14 = 0 =>
3ax - 15x -4b -8 = 0
group together x's and constants:
(3a-15)x -8 -4b = 0
To make this 0 for all x, we have to find an a such that 3a-15 = 0 and b such that -8-4b = 0. this leads to a=5, b=-2
