Given the function h(x)=x^2+14x+41, to solve by completing square we procced as follows;
x^2+14x+41=0
x^2+14x=-41
but;
c=(b/2)^2
and b=14
hence;
c=(14/2)^2=49
substituting the value of c in the expression we get:
x^2+14x+49=-41+49
x^2+14x+49=8
(x+7)^2=8
this can be written in vertex form;
h(x)=a(x-h)^2+k
where:
(h,k) is the vertex;
thus
(x+7)^2=8
h(x)=(x+7)^2-8
hence the vertex will be at the point:
(-7,-8)
The correct answer is B -8 just do the work :)
Answer:
x= 35.7339234
Step-by-step explanation:
cos(52)= 22/x
x= 22/cos(52)
It's simple just divide the total Miles traveled by the total hours;
287 m ÷ 3.5 (it's 3.5 because 30 mins is half of an hour)

= 82 miles per hour
So your final answer would be
82 miles per hour :)