Vertex form is basically commplete the square
y=a(x-h)^2+k
y=x^2+14x+4
take 1/2 of 14 and square it, (7^2=49)
add that and its negative to right side
y=x^2+14x+49-49+4
factor perfect squaer
y=(x+7)^2-49+4
y=(x+7)^2-45
answer is A
Answer:
The average rate of change from 3 to 6 storms = 0.04
Step-by-step explanation:
Let number of Storms = N
And Predicted Gas Price = P
it is required to find the average rate of change from 3 to 6 storms.
At N = 3 ⇒ P = $2.44
At N = 6 ⇒ P = $2.56
So, the average rate of change = 
It would be <span>b.<span>$1,937.12.
Thank you! I am sorry if this was a bit late.
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Answer: y = 90°
Step-by-step explanation:
55.30786941 = sin-1 (148/180) round to 55.3° angle x
34.69213059 = cos-1 (148/180) . round to 34.7° "angle z" at right
34.7 +55.3 = 90
Sum of All angles of the triangle = 180° 180 -90 = 90
If angle x is 55.7 and angle z is 34.7° Angle y must be 90°
Ratio of inscribed arcs = ratio of chord to diameter
