Answer:
Distance = 7.8 units
Step-by-step explanation:
In coordinate geometry, the distance between the 2 points is given by

where (x1,y1) and (x2,y2) are coordinates of the 2 points.
Above the 2 points given are, (-2,-1) and (3,5).
<em>x1 = -2 , y1 = -1 , x2 = 3, y2 = 5</em>
<em>
</em>
<em>
</em>
<em>Distance = 7.8102 units</em>
To the nearest tenth, Distance = 7.8 units
Answer:
b=6
Step-by-step explanation:
9/b=21/14
9/b=3/2
9=3/2b
9=3b/2
9×2=3b
18=3b
18/3=b
6=b
b=6
Answer:
-1.825
Step-by-step explanation:
Just subtract!
Note that 125 = 5³. Make use of the factorization of the sum of cubes:
a³ +b³ = (a+b)(a² -ab +b²) . . . . . . a formula worth keeping handy
Then ...

_____
When x=-5, this evaluates to
... (-5)²-5(-5) +25 = 75