Answer:
20x²+2xy-4y²
Step-by-step explanation:
(2x + y) (10x -4y)
=2x (10x-4y) +y (10x-4y)
= 20x²-8xy+10xy-4y²
=20x²+2xy-4y²
Answer:
The slope is 4
Step-by-step explanation:
rise over run
Answer: B
Explanation:
Equation of line y=mx+b
m = y2-y1/x2-x1 = 2-(-2)/1-(-1) = 4/2 = 2
b = (0,0)
y = 2x+0
y=2x
Answer:
Proxima Centauri is 2.478 x 10¹³ miles from Sun.
Explanation:
Distance of Proxima Centauri to sun = 4.24 light years
1 light year = 5.9 x 10¹² miles.
Distance of Proxima Centauri to sun in miles = Distance in light years x 5.9 x 10¹² miles
So, Distance of Proxima Centauri to sun in miles = 4.2 x 5.9 x 10¹² miles
= 2.478 x 10¹³ miles
So Proxima Centauri is 2.478 x 10¹³ miles from Sun.
Answer:
643.72
Step-by-step explanation:
