Write an expression that is equivalent to three over four(5z + 16).A: 15 over fourz + 16B:15 over fourz + 12C: three over fourz
1 answer:
Your expression looks like this: 
. The mathematical operation indicated by that is multiplication. We will distribute the 3/4 into the 5z by multiplication. If it's easier, think of the problem like this: 
. When you multiply fractions you don't need a common denominator. You just multiply straight across the top and straight across the bottom. 3 times 5z is 15, and 4 times 1 is 4 so that comes to 
. And 3 times 16 is 48, and 4 times 1 is 4, and 48/4 is 12. So the final simplified expression is 
. Your answer is B.
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Answer: A
Step-by-step explanation:
First, the problem is g(f(x)). You would plug in f(x) wherever you see an x in g(x). To find the domain, you take the bottom function, and set it equal to 0.
When you solve that, you get x=2. You know your domain is x≥2, but there is as asymptote at x=11. That means the graph never reaches x=11, but gets very close. You find that by setting the entire equation equal to 0 and solve from there.