Answer:
-0.8 - 0.5b - 1.4c
Step-by-step explanation:
Take the b and the c away
Then times the 0.2 by all the numbers but don't add them
Once your done you and the b and c back to you equation
36 feet + 9 feet
= 45 feet
You are correct! The distance from where Debbie and Andy are standing to the coral reef is 45 feet in total.
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
Answer:
infinite solutions
Step-by-step explanation:
Multiply the first equation by 2 so we don't have fractions.
x = 1/2y - 3 becomes 2x = y - 6
Now substitute the second equation into the y-value of the new equation
2x = (2x + 6) - 6
2x = 2x
x can equal anything. this means there are infinite solutions
