First you need to know how many cups of powder you are going to need for the 496 cups of paint you already have
We write this as a ratio
for the 496 cups of paint you will need 99.2 cups of powder.
Continue by seeing how may grams there are in 99.2 cups
write it as a ratio and solve for x again.
now find how many vials you will need
write the ratio and solve
If each sets comes with 12 sets, write the ratio and find the number of sets you will need
you will need 98 sets for this amount of paint.
Answer: B. [–4, 0) ∪ [2, ∞)
To find the range, find out what y-values are possible for the function in the graph.
<h2>Symbols</h2>We need to pay attention to what symbols to use.
<h3>Reading the diagram</h3>Solid circle
Empty circle
Arrow
Square brackets: [ and ]
Curved brackets: ( and )
Union of sets: ∪
Let's start by looking for the lowest possible y-value at the bottom of the diagram. On the graph, the point (4, –4) marked with a solid circle.
The function touches the point and stops. Since the y-value is –4, the lowest possible y-value is:
If we follow the blue line upwards, we find an empty circle at (0, 0). The y-value in (0, 0) is 0. This means that the function gets close, but does not include:
So, the first part of our range is:
The blue line on the top starts where y = 2 at a solid circle. So, the function includes the y-value:
If we follow this blue line upwards, it ends with an arrow. This means it will keep going to infinity, which is the symbol:
So, the second part of our range is:
Put the lower and upper blue lines together with the union of sets symbol. The range is expressed as: [–4, 0) ∪ [2, ∞)
Learn more about domain and range here: