Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52
A=52 I think
B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B
Answer:
go to khan academy and u can find a vid. answer there!
Step-by-step explanation:
Decimal form: -2.6666..
Fraction form: -2 2/3
Answer:
1) 4+n<13
2) 11-n>17
3) n-8≥9 or n+(-8)≥9
4) 16<8n
5) n·5≤30
Step-by-step explanation:
