Answer:
The f(-2) is 20.
Step-by-step explanation:
f(x) = 2x^2 - 3x + 6
We have to find the f(-2),
f(-2) = 2×(-2)^2 - 3×(-2) + 6
f(-2) = 8 - (-6) + 6
f(-2) = 8 + 6 + 6
f(-2) = 20.
Answer: height = 17.5cm
Step-by-step explanation: Peter mixes blue and yellow paint in the ratio 2:3, which means:


x = 12.6L
The container is full with the two paints, so total volume:
V = 12.6 + 8.4
V = 21L
Knowing that 1L = 1dm³ and sides of cuboid is measure in cm:
V = 21dm³ = 21000cm³
Volume of a cuboid is calculated as:
V = width*length*height
Height of the container is
height = 
height = 
height = 17.5cm
The height of the container is 17.5cm.
Answer:
a function, it passes the vertical line test
Step-by-step explanation:
1. The range of a function is the set of all values that f can produce for all the x-es in the domain.
2. If we are given the graph, in order to find the range, we project the graph into the y axis. Informally, we draw the "shadow" of the graph into the y axis as in the FIGURE atached.
3. The range is <span>D || {y | −5 ≤ y ≤ −1}</span>