The image has the answers
Answer:
1 / X² -4 = (- 1/4) / (X+2) + (1/4) / (X - 2)
Step-by-step explanation:
1 / x²-4 = 1 / (X+2) * (X-2)
1 / X²-4 = (A / X+2) + (B / X-2) = (AX - 2A + BX +2B) / X² -4
∴ 1 = (A + B) * X - 2 (A - B)
A + B = 0
- 2 (A - B) = 1
A - B = - 1/2
∴ 2A = - 1/2
A= - 1/4
B= 1/4
1 / X² -4 = (- 1/4) / (X+2) + (1/4) / (X - 2)
Answer:
The answer is 16(14)=224.
1/6 or 0.16 in decimal form
<u>Answer:</u>
32 units
<u>Step-by-step explanation:</u>
We have a quadrilateral ABCD and we are given the following coordinates for these vertices:
A (-11,-6)
B (-3,0)
C (1,0)
D (1,-6)
AB = = 10 units
BC = = 4 units
CD = = 6 units
AD = = 12 units
Perimeter of ABCD = = 32 units