Answer:
Step A is incorrect because Lauren identified the wrong formula for sine(θ). Instead, sin(θ) would be equal to opposite / hypotenuse. Then you can substitute getting: 12/15, and once you simplify you get 4/5.
a=15
Step-by-step explanation:
By pythagoras' theorem
25²=20²+a²
625=400+a² group like terms
a²=625-400
a²=225
therefore a=15
24
I think you ask about LCM
6- 2×3
8- 2×2×2
lcm = 2×2×2×3 = 24
y= -3/2x + 4
hope this helps :)