Answer:
I believe #20. is A
Step-by-step explanation:
because if you use distributive property and multiply the 5 to the () numbers you will get your original question.
Also, i cant see all of the options for #21.
We will see that g(x) is a reflection across the y-axis of f(x), then:

<h3>How to identify the function g(x)?</h3>
By looking at the graph, we can see that g(x) is a reflection across the y-axis of f(x).
So we can write:
g(x) = f(-x)
Here we know that:

Then, replacing f(x) on the formula for g(x), we get:

That is the function g(x) shown in the figure.
If you want to learn more about transformations:
brainly.com/question/4289712
#SPJ1
Answer:
EF = 7 units
AD = 3 units
BC = 11 units
Step-by-step explanation:
Since it is an isosceles trapezoid and the midsegment is x, the sum of the bases divided by 1/2 is the value of the midsegment, x.
x = 1/2(x-4 + 2x-3)
x = 1/2x - 2 + x - 1 1/2
x = 1 1/2 x - 3.5
-1/2 x = -3.5
x = 7 units
EF = 7 units
AD = 7-4 = 3 units
BC = 2(7) - 3 = 11 units
Step-by-step explanation:
Adjacent angles are two angles that have a common vertex and common side but do not overlap. They share the same vertex and same common side.
Vertical angles are opposite angles made by two intersecting lines.
Hope this helps!
Answer:
27.5
Step-by-step explanation:
y = kx
55 = 120k
k = 55/120
y = 55/120 x 60
y = 55/2
y = 27.5