Answer:
a = 0,-7
Step-by-step explanation:
a^2 + 7a=0
Factor out an a
a(a+7) =0
Using the zero product property
a=0 a+7 =0
a =0 a= -7
Answer:
x = 15
Step-by-step explanation:
The two angles form a straight line so they add to 180 degrees
3+6x + 5x+12 = 180
Combine like terms
11x+15 = 180
Subtract 15 from each side
11x+15-15 =180-15
11x = 165
Divide by 11
11x/11 =165/11
x =15
You multiply -4 to everything inside of the parenthesis which is 20w+12u-8
17. 9
18. 12
19. 16
20. 56
21. 143
22. 14
23. 27
24. 7
Answer:linear
Step-by-step explanation:
The numbers are going up at the same rate and it’s a straight line
