AFD = 49
49 + 58 = 108
DAF = 180 - 108 = 72
BFD = 180 - 49 = 131
131 + 20 = 151
BAF = 180 - 151 = 29
DAB = 29 + 72 = 101
DAB = 101
2400/6000 multiplied by 100 = 40%
Answer:
energy and electricity
Step-by-step explanation:
hope that help with you question
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
Using PEMDAS
(Parenthesis)(Exponents)(Multiplication/Division)(Addition/Subtration)
So:
