Answer:
X- Intercepts: (-1,0) and (-3,0)
Y- Intercepts: (0,-6)
Vertex: (-2,2)
Maximum
Axis of Symmetry x=-2
I don't know what the roots/solutions/zeroes are
7. Domain: All real #
8. Range: y is less than or equal to 2
Step-by-step explanation:
Tell me if you need explanation
Answer:
the rate of each train is 139 km/h and 159 km/h.
Step-by-step explanation:
let
v = the rate of the slower train
v + 20 = the rate of the faster train
d = 1490 km the distance that the two train will travel
t = 5 hr the time of the travel
since speed = distance/time => distance = speed*time
v*t + (v+20)t = d
5v + 5(v + 20) = 1490
5v+5(v+20)=1490
Step 1: Simplify both sides of the equation.
5v+5(v+20)=1490
5v+(5)(v)+(5)(20)=1490(Distribute)
5v+5v+100=1490
(5v+5v)+(100)=1490(Combine Like Terms)
10v+100=1490
10v+100=1490
Step 2: Subtract 100 from both sides.
10v+100−100=1490−100
10v=1390
Step 3: Divide both sides by 10.
10v/10 = 1390/10
v = 139km/h
Next
we add 139 to 20
139 + 20 = 159 km/h
the rate of each train is 139 km/h and 159 km/h.
To surround it? So In other words, you are looking at the perimeter
Width= 6 feet
Length= 4 feet
So you multiply because there are two two even sides
4×6=24
<em>Answer=24 feet </em>
