He is incorrect because you can multiply unlike terms like y and x and you'll get xy but you can't add unlike terms like 13x+16y is the simplest it can be.
Answer:
(-2, 2)
Step-by-step explanation:
Well first you would have to graph both inequalities.
y = mx + b
b is the y-axis intercept
m is the slope
Answer:
24
Step-by-step explanation:
angle = 38
opposite of angle = 15
hypotenuse = c
sohcahtoa
sin utilizes both opposite and hypotenuse
thus,
sin(38) = 15/c
multiply both sides by c to make it a numerator
csin(38) = 15
divide both sides by sin(38) to get c
c = 15/sin(38) ≈ 24
Its 2x +20
hope this helped you