F(g(x)) = f(4/x) = (4/x)/(4/x - 7) = (4/x)/((4 - 7x)/x) = 4/x * x/(4 - 7x) = 4/(4 - 7x)
The rules of exponents tell you to add exponents in the numerator and subtract those in the denominator. A power of a power causes the exponent to be multiplied.
Answer:
Hi there!
The answers are -9 and 5.
Step-by-step explanation:
On a number line you can either go left (towards the negative side) or right (towards the positive side) since it is asking what numbers are a distance of 7 units from -2, there are two methods you must use;
-2 + 7 means you are moving 7 units to the right and you get 5
-2 -7 means you are moving 7 units to the left and you get -9
I would add 4+6+8 but to make this easier i would maybe split them
Answer:
B and C
Step-by-step explanation:
Since the price of one slice is B then 2 pieces has the price of 2B amd the total cost equals 2B+J
then to calculate the total cost for 7 days you have to multiply the cost for one day by 7 which is 7(J+2B) or if you expand that phrase you get 7J+14B
