Answer:
128/15 min or 8.5 min
Step-by-step explanation:
By using unitary method,
Time required to paint 5/8 of wall = 16 min.
Time required to paint 1/1 of wall = 16×8/5
Hence, Time required to paint 1/3 of wall = 16×8/5×1/3
Answer:
the first one
Step-by-step explanation:
Sent a picture of the solution to the problem (s).
To express a function of the form

in vertex form

where (h,k) is the vertex of the parabola, we need to find the vertex first.
To find the vertex we are going to use the vertex formula:

, and

will be the function evaluated at

.
We can infer from our function that

and

. So lets find

:




Now that we have

, we can evaluate the function at 1 to find

:




We have the vertex (1,3) of our parabola, so we can use its vertex form:



We can conclude that the vertex for of our parabola is <span>f(x) = (x + 1)2 + 3.</span>