Answer:
5
Step-by-step explanation:
1 crystal can raise 12 zombies
x crystals can raise 60 zombies
This is a problem involving <em>ratio-and-proportion</em>.\
1/x = 12/60
Reduce the fraction to lowest terms 1/x = ⅕
Multiply each side by x 1 = x/5
Multiply each side by 5 x = 5
Lilliana needs five dark power crystals to raise 60 zombies.
Answer:
take Spanish II. If there are two sections of psychology, two of social justic
Step-by-step explanation:
Answer:
<h3>x = 21/10y</h3>
Step-by-step explanation:
If the variables x and y vary inversely, this is expressed as;
x ∝ 1/y
x = k/y
k is the constant of proportionality
Given;
x = 7/2 and y = 3/5
Substitute;
7/2 =k/(3/5)
Cross multiply
k = 7/2 * 3/5
k = 21/10
Substitute the value of k into the formula;
x = k/y
x = (21/10)/y
x = 21/10 * 1/y
x = 21/10y
Hence the equation relating x and y is x = 21/10y
Answer:
B (x-7<-6)
Step-by-step explanation:
x < 1
Answer:
y ≥ 2
Step-by-step explanation:
The range is all of the values that f(x) can have. In order to find the range, let's first find the vertex. That's pretty easy to do since f(x) is already written in vertex notation (vertex notation is f(x) = a(x - c)² + d where (c, d) is the vertex). Since c = -5 and d = 2, the vertex is (-5, 2). Because the value of a is positive (a = 3 in this case, which is positive) we know that the parabola opens upward, therefore the vertex is the minimum. This means that the y-coordinate of the vertex is the smallest possible y-value of the function, therefore, since the y-coordinate of the vertex is 2, the range is y ≥ 2. Note that we use ≥ and not >, this is because y can be 2, therefore, it is included in the solution set.