Answer:
Domain: x0 or [0,infinity)
Step-by-step explanation:
f(x)= and g(x)=3-x
We are told to multiply the two functions so we multiply:
(fg)(x)=*(3-x)
(fg)(x)=3-x
Now this is a square root function and it can only go to the right because the square roots of numbers less than 0 are imaginary numbers. Therefore the domain must be greater than or equal to 0.
Answer:
y= 1400(1.09)
Step-by-step explanation: this is the correct answer because since you're increasing you add a 1 as (1.09)
129 minutes is the answer! hope this helps :)
Answer:
tip: $7.50
total: $57.50
Step-by-step explanation:
you change the 15% into a decimal by moving the the decimal point 2 spots to the left so now you have .15
next do .15 * 50 to get 7.5, which is the tip
now to find the total, add 7.5 + 50 to get 57.5
The strategy for these is to look at what these problems are telling you.
It says the y-value, so you know that this is a y = equation.
y = what?
y = 2 more than. 4 is two more than 2, right? So saying it's more than is another way of saying "y is 2 + blah blah."
So y = 2 + what? Three times the x-value. What does that mean? 3*X = 3X.
Thus we arrive at the final answer, y = 3x + 2