Answer:
31 = 2⁵ -1
31 = 16²- 15²
Step-by-step explanation:
As we know that
2¹=2
2²= 4
2³= 8
2⁴= 16
2⁵=32
So
32 = 2⁵
By subtracting 1 in bot sides
32-1 = 2⁵ -1
31 = 2⁵ -1
So
2⁵ -1 = 31
By comparing with

p= 5
As we know that
15²= 225
16² = 256
16²- 15² = 256-225 = 31
16²- 15² = (16+15)(16-15)
31 = (16+15)(16-15)
Sir or ma’am it’s easy, the answer is the 2 one
Hello
<span>x² + y² - x - 2y - 11/4 = 0
(x²-x) +(y²-2y)-11/4 = 0
(x-0.5x)²-(1/2)² + (y-1)² -1² -11/4=0
(x-0.5)² +(y-1)² = (1/4)+1+(11/4)
= </span> (1/4)+(4/4)+(11/4)
(x-0.5)² +(y-1)² =4²
Answer D the center of the circle is : A (1/2, 1),<span>the length of the radius</span> 2 units
Answer:
11
Step-by-step explanation:
11 times 5 is 55
11 times 8 is 55