Answer:
Vertex is (-1, -9)
Step-by-step explanation:
To find the x-value of the vertex, we use the formula
x
=
−
b
2
a
(This is considered the axis of symmetry).
a
=
1
and
b
=
2
with
c
=
−
8
(These are the numbers in order)
By substituting we get
x
=
−
(
2
)
2
⋅
1
, which simplifies to
x
=
−
1
.
Once you find x, substitute back into the equation to find y.
y
=
(
−
1
)
2
+
2
(
−
1
)
−
8
y
=
1
−
2
−
8
y
=
−
9
Putting the two numbers together you get the coordinates
(
−
1
,
−
9
)
.
Answer:
The time required them working together to shovel the snow is T = 1.428 hours
Step-by-step explanation:
Given data
Time taken by first person to shovel the snow
= 2 hours
Time taken by second person to shovel the snow
= 5 hours
Time taken by both persons to shovel the snow

Put all the values in above equation we get

T = 1.428 hours
Therefore the time required them working together to shovel the snow is T = 1.428 hours
Answer:
1/4. or 0.25 :))
Step-by-step explanation:
4 as a fraction is 4/1, so the reciprocal is 1/4 :)
Answer:
hope is helpful
please mark me brainly list
I think it’s decreasing linear