Answer:
Correct answer is B. (-2,4)
Step-by-step explanation:
Given: y = 2x^2 + 8x + 12
if x = 2,
Use substitution: y = 2(-2)^2 + 8(-2) + 12
y = 8 - 16 + 12
y = -8 + 12
y = 4
So, (-2, 4) would be your answer.
I hope this helps!!!
Hello :
<span>g(n) = n2 − 16n + 69
=( n²-16n+64)-64 +69.....(</span><span> completing the square)
</span>g(n) = (n-8)² +5...... (<span>the vertex form)
the vertex is : (8,5)
</span><span>the axis of symmetry is the line : n = 1</span>
Answer:
60:100, 6/10, 3/5, 6 to 10, etc.
Step-by-step explanation:
You take the number of girls over total students which is boys + girls. Since there's 40 boys and 60 girls, it's 60 girls to 100 students which can be written in several ways.
N^2 + n - 120 = 0
Quadratic formula
a = 1, b = 1, c = -120
n = [-1 plus or minus root(1^2 - 4(1)(-120))] / 2(1)
n = (-1 plus or minus root481)/2
n =(approximately) 10.5 or -11.5
7.7 the answer in 7.7 because 2+5 = 7 and 3+4= 11
