Answer:
Domain:
t >= 0
Option D
Step-by-step explanation:
At year t = 0, (brand new motorcycle), the value in dollars is
v(0) = $9000
For each passing year, the motorcycle loses 13% of its original value.
This means that for t > = 0, the function produces a logical result.
The domain cannot be all real numbers because the years cannot be negative.
Answer is option D.
You need to sell 16.24 / 1.32 = 12.3 meals. However, since you can't sell "0.3" meals, you actually need to sell 13 meals in order to break-even on the plates.
Answer:
f(x) = 3x + 26; 26 ≤ y ≤ 35
Step-by-step explanation:
This makes a linear equation.
y=mx+b
where m is the amount they want to increase each week
and b is the initial value i.e 26 clients.
Now substitute the values in the equation.
Let x=0
y=3(0)+26
y = 26
Now let x= 3
y=mx+b
y=3(3)+26
y=9+26
y=35
Thus the correct option is B.
f(x) = 3x + 26; 26 ≤ y ≤ 35 .....
a = 4, b = -21, c = -18
to keep from getting "mixed up", evaluate the discriminant first ...
b<sup>2</sup> - 4ac = (-21)<sup>2</sup> - 4(4)(-18) = 729
sqrt(729) = 27
x = (21 +/- 27)/8
x = -3/4, x = 6
since the discriminant is a perfect square, the original quadratic will factor ...
4x<sup>2</sup> - 21x - 18 = 0
(4x + 3)(x - 6) = 0
x = -3/4, x = 6