An expression for the cost will be 50+100n, where n is the number of cavities.
Answer:
the answers are c, d, &f
Step-by-step explanation:
the equivalence to 12:3
1200:300. = 12:3 (reduce by 100)
12:3= 4:1 (reduce by 3)
24:6= 12:3 (reduce by 2)
Step-by-step explanation:
288÷60(60 minutes in an hour) = 4.8
is this what you asked for?
Answer:
y = -2 and y = -5 thus: d)
Step-by-step explanation:
Domain restrictions are values of x which are not acceptable in a function.
They may be arbitrary because we simply want to ignore them. eg y = x^2 between 0 and 4
They may make no sense in the context, eg graph a compounding investment over next 20 years.
Negative values for x make sense here.
They may avoid mathematical impossibilities eg y = (x^2 - 4x) / (x - 4) which must avoid dividing by zero, so x cannot = 4.
The graph will look like the line y = x but have a hole where x= 4
