(x2 – 3x) + (–2x2 + 5x – 3)
Answer:
Step-by-step explanation:
We have which is the same as:
The polynomial has 5 terms that we are going to analyse:
1st. term: Degree: 2 Coefficient: 1
Observation: Coefficient is the number in front of a variable. In this case the variable is x. Then the first term has coefficient 1 because .
2nd. term: Degree:1 Coefficient: (-3)
3rd. term: Degree:2 Coefficient: (-2)
4th. term: Degree:1 Coefficient: 5
5th. term: Degree:0 Coefficient: (-3)
We have to reorder the polynomial writing each term in order of degree from highest to lowest (left to right).
The terms with highest degree are the first and third. Then the second and fourth term. And the lowest degree corresponds to the fifth term.
The polynomial now is:
Now we have to sum the terms that have the same degree:
Then the result is:
A.) {-2, 2, 5, 7}
B.) {4,6,8,11}
C.) {(2,8),(5,6),(7,4),(-2,11)
D.) {-2,2,4,5,6,7,8,11}
Answer:
A.) {-2, 2, 5, 7}
Step-by-step explanation:
The range of a set of ordered pairs is the set of second numbers in the pairs.
Here, the second numbers are 2, 5, 7, -2. When written as a set, it is convenient (though not required) that they be written in numerical order:
{-2, 2, 5, 7} . . . . matches choice A
Answer:
A.) {-2, 2, 5, 7}
Step-by-step explanation:
Answer:
D. 4x+5x=180
Step-by-step explanation:
Answer:
D. 4x + 5x = 180
Step-by-step explanation:
The two angles form a straight line and a straight line equals 180°. So, the sum of the two angles has to equal 180°.
4x + 5x = 180
9x = 180
x = 20°
Hope that helps.