Answer:
Step-by-step explanation:
∠A + ∠B = 180 {supplementary angles}
8x - 25 + 7x - 5 = 180 {bring the like terms together}
8x + 7x - 25 - 5 = 180 {add the like terms}
15x - 30 = 180 {add 30 to both the side}
15x = 180 +30
15x = 210 {divide both sides by 15}
15x/15 = 210/15
x = 14
∠B = 7x - 5 = 7*14 - 5
= 98 - 5
∠B = 93°
- 610
25y = 45/1x = 30
Sorry I could only find the answer to the second part.
y=56x
a2 (10x10) + b2 (4x4) = c2 (100+16)
Answer: √116
60 * 40% = 24
just use a calculator
