Answer:
<h2>
k = 3</h2>
Step-by-step explanation:
The vertex is (d, e)
for quadratic function: f(x) = ax² + bx + c we have:
d = -b/a and d = (x₁ + x₂)/2
a = 1, b = k, x₁ = -4, x₂=-2
so:
d = -b/a = -k/1 = -k and d = (x₁ + x₂)/2 = (-4-2)/2 = -3
-k = -3
k = 3
Answer:
(6,12)
Step-by-step explanation:
Substitute the value of y into y=2x:
x+6=2x
x=6
Substitute x into the equation of y=2x
y = 2*6 = 12
(6,12)
Answer:
what ??
Step-by-step explanation:
Answer:
Step-by-step explanation:
can go into 
twice at the most, so doubling will give us 
, which leaves us with 
left over to reach 315, which is why is the numerator. The remainder is ALWAYS the numerator.
I am joyous to assist you anytime.
Answer:
276.75 miles
Step-by-step explanation:
12.3/3.2 × 72 = 276.75 miles
