Take one step at a time. First, let's evaluate g(1):
g(1) = 2*1-3 = -1
now plug this into f:
f(-1) = 5*-1 = -5. So the second answer is the right one.
-----------------------
Same approach for q 12, only now we have no value to fill in for x. What's confusing here is that the x's of f and g should not be mixed up. For the sake of clarity let's rewrite f as
f(z) = 5z + 9.
Now we'll write 3-4x everywhere we find a z. Ah, only one place.
f(g(x)) = 5(3-4x) + 9 = 15 - 20x + 9 = 24 - 20x
Answer:
A. 4.2 times
Step-by-step explanation:
Chlorine level of the pool as adjusted by Paula = 6.3 parts per million
Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.
Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level
= 
The current Chlorine level is 4.2 times the ideal Chlorine level.
Answer:
(t,s)
Step-by-step explanation:
this point has the x value t and the y value s that is missing.
7x+40... If you go to mathwarehouse.com you can type your question in and you'll get an answer in less than a second
Y’’(x)= 6x + 1
y’(x)= 3x^2 + x + 2
y(x)= x^3 + 1/2x^2 + 2x + 5
