Answer:
CE = 21.2
Step-by-step explanation:
CE = CD + DE = 14 + 7.2 = 21.2
Answer:
see explanation
Step-by-step explanation:
(a)
Given y is directly proportional to x then the equation relating them is
y = kx ← k is the constant of proportion
To find k use the condition when x = 3, y = 18 , then
18 = 3k ( divide both sides by 3 )
6 = k
y = 6x ← equation of proportion
(b)
(i)
when x = 12 , then
y = 6 × 12 = 72
(ii)
when y = 42
42 = 6x ( divide both sides by 6 )
7 = x
Shown in the graph
<h2>
Explanation:</h2>
Using graph tools we can graph the function:
which is the red graph shown below. As you can see, this is a parabola. The rule for vertical and horizontal shifts is as follows:
Therefore, If we shift the red graph 9 units to the right and 1 down, our new function (let's call it 
) will be:
This graph is the blue graph below. Let's verify the transformation taking the vertex of the red graph:
By translating the 9 units to the right and 1 down the vertex is also translated by the same rule, so:
<h2>
Learn more:</h2>
Cubic function: brainly.com/question/13773618#
#LearnWithBrainly
Answer:
1/2
Step-by-step explanation:
2 1/4 - 1 3/4 Because the denominator are already the same, all you have to do is make it a mixed number and subtract. To do that you multiply the whole number to the denominator and add that new number to the numerator. So you would then have.
9/4 - 7/4
Keep the denumerator the same and subtract the numerators.
2/4
Then simplify
1/2
