Answer:
11.25
Step-by-step explanation:
First, add the values up.
15+9+11+7+5+11+26+6=90
Then divide the sum by the number of numbers.
90/8=11.25
Answer:
The vertex is the point (-1,11). is a maximum
Step-by-step explanation:
we know that
The equation of a vertical parabola in vertex form is equal to

where
(h,k) is the vertex
a is a coefficient
if a > 0 the parabola open upward and the vertex is a minimum
if a < 0 the parabola open downward and the vertex is a maximum
we have

Convert to vertex form
Complete the square

Factor the leading coefficient



Rewrite as perfect squares


The vertex is the point (-1,11)
The coefficient a=-5
so
a < 0 the parabola open downward and the vertex is a maximum
Answer:
32ft^2
Step-by-step explanation:
because Area of the surface triangle is A = 1/2ap
So its 4 * 16 divided by 2
Answer
23.28
Step-by-step explanation:
34 ÷ 2 = 17 and 17 + 6.28 = 23.28
Answer:
551
Step-by-step explanation: