Answer:
B
Step-by-step explanation:
x²+2x=19 add 1 to both sides which gives you x²+2x+1=20
x²+2x+1 is the same as (x+1)²
Therefore (x+1)²=20
Answer:
12
Step-by-step explanation:
the LCD is 12 I don't really know how else to explain that
Answer:
60°
Step-by-step explanation:
2x and x are linear pair,
=> 2x + x = 180
=> 3x = 180
=> x = 180/3
=> x = 60°
=>2x =120°
Eight and fifty four hundredths
8 . 5 4
Ones Tenths Hundredths
The first one is 19,487,171 and the second is 7,776
