Start by combining like terms -2x + -3x = -5x. 7 + -9 = -2. You should get -5x - 9.
Answer: y=3(4)x
Explanation: I took the test
1st part: you do 180 - 110 = 70
Why you subtract 180 from 110 is linear adds up to 180, so 70 + 110 would get 180 if that makes sense.
2nd part: 180 - 115 = 65
This is similar concept to what I explained with the first part.
3rd part: Triangle sum theorem is 180
4th part: To get angle 7 I believe you just subtract
180 - 70 - 65 = 45
5th part: 7 and 6 I believe are vertical angles and vertical angles are congruent which would make 6 = 7
6 would also = 45
Although I cannot see the options for each of the question(s) choices, I hope this can help you. :)
Answer:
-57
Step-by-step explanation:
3r x 6-11r x 5-20r x 1 any expression multiplied by 1 remains the same always calculate the product.
multiply calculate
18r-55r-20r
collect like terms
-57
78n > 312
n > 312/78
n > 4
[4, infinity)
Use a closed bracket [ for 4 because I can equal exactly 4 when we plug in to get 312