Answer:
x = 30°
Step-by-step explanation:
We know that the sum of all of the interior angles of a triangle is 180°, therefore, we can write the following equation:
x + 2x + 3x = 180
6x = 180
x = 30°
It is the first number line :)
Add: (3x2 - 5x + 6) + (9 - 8x - 4x2)
The givens should be arranged first before we can start answering.
3x2 - 5x + 6 plus
-4x2 - 8x + 9
= -x2 - 13x +15
Therefore, the answer to the question is E) -x2 - 13x +15
Answer:
A
Step-by-step explanation:
11/4 hours on the first day
21/4 hours on the second
21-11=10
10/4 hours or 2 2/4
Graphs can be used to represent functions.
See attachment for the graphs of: <em>y =x - 2, y = 0.4x - 2, y =-x - 2</em>
The function is given as: 
When k = 1,
We have:
----- substitution property of equations
So, the equation is: when k = 1
When k = 0.4,
We have:
----- substitution property of equations
So, the equation is: when k = 0.4
When k = -1,
We have:
----- substitution property of equations
So, the equation is: when k = -1
See attachment for the graphs of: , and
Read more about graphs and functions at:
brainly.com/question/11804653
