Answer:
7.2 + x = 10
Step-by-step explanation:
I did 7.2 + x = 10 Because there was suspose to be a number in between
that we do not know so you have to put 7.2 + x = 10
Then... For the next question (The same question but asking the number in between) The second Question you do 7.2 - 10 and you get 2.8
Answer:
y = 9x + (-7) should be the answer
Answer:
-19
Step-by-step explanation:
To be able to solve clearly this problem, the best thing
to do is to plot the graph (see attached pic). From the graph we can see that
the points form a trapezoid.
The base is formed by the segment connecting point A and
point B.
While the two heights: shorter one by the segment
connecting points A and D, and the longer one by the segment connecting points
B and C.
The formula for area of trapezoid is given as:
A = b (h1 + h2) / 2
Where,
<span>b = base of the trapezoid
= 3 – (-4) = 7</span>
h1 = shorter height = 2 – (-2) = 4
h2 = longer height = 2 – (-5) = 7
Therefore the area is:
A = 7 (4 + 7) / 2
A = 77 / 2
<span>A = 38.5 </span>
Answer:
Similarity: Both functions has same vertex at point .
Difference: is downward opening parabola, while is an upward opening parabola.
Step-by-step explanation:
We have been given two functions as: and . We are asked to compare the graphs of the given function.
We know that standard form of a parabola with vertex at point (h,k) is in format .
Let us find the similarity in both graphs.
- Upon comparing both functions with standard form of a parabola, we can see that vertex of the both parabolas is at point .
Let us find the difference in both graphs.
We can see that leading coefficient of is positive, so it will be an upward opening parabola.
We can also see that leading coefficient of is negative, so it will be a downward opening parabola.