Let the line segment BD be x, then sin A = x/15
or, x = 15sinA
Also

The last option
Answer:
90 is your answer
Step-by-step explanation:
first I just added all similar numbers together, then I added the answers of all the similar numbers together one-by-one, finally we find our answer, 90
Answer:
Rate of change = -12
Step-by-step explanation:
y − 3 = −12(x + 4)
Expanding, we have;
y - 3 = -12x - 48
y = -12x - 48 + 3
y = -12x - 45
Now, formula for rate of change is;
Rate of change = (y(x + h) - y)/h
y(x + h) is; y = -12(x + h) - 45
This gives;
Rate of change = (-12(x + h) - 45 + 12x + 45)/h
Rate of change = (-12x - 12h - 45 + 12x + 45)/h
Rate of change = -12h/h
Rate of change = -12
The answer is A. a=(-1) b=(7)