Answer:
= 8 mp /h
Step-by-step explanation:
Average speed=total distance/total time
=20/2.5
=8 mp/h
Step-by-step explanation:
X-2=0 or x+10=0
X=2 or x=-10
Two roots
Answer:
x=3
Step-by-step explanation:
Simplify 3(x-2)+5X
= 8x-6=18
Add 6 to both sides
8x=24
Divide by 8
x=3
Answer:
The vertex is ( -4,1)
Step-by-step explanation:
The equation for a parabola can be written as
y = a( x-h)^2 +k where ( h,k) is the vertex
y = 2
(x + 4)² + 1
Rewriting
y = 2
(x - -4)² + 1
The vertex is ( -4,1)
The answer is negative 149