91.0k views
2 votes
F(n) = n + 3 g(n) = n² + 4 Find f(4) x g(4)A. -20B. 10C. 140D. -6

1 Answer

3 votes

Answer:

C. 140

Step-by-step explanation:

Given f(n) and g(n) defined below:


\begin{gathered} f\mleft(n\mright)=n+3 \\ g\mleft(n\mright)=n^2+4 \end{gathered}

First, evaaluate f(4) and g(4):


\begin{gathered} f\mleft(4\mright)=4+3=7 \\ g\mleft(4\mright)=4^2+4=16+4=20 \end{gathered}

Therefore:


\begin{gathered} f(4)\cdot g(4)=7*20 \\ =140 \end{gathered}

The correct choice is C.

User Yallie
by
7.6k points

Related questions

1 answer
0 votes
97.0k views
1 answer
1 vote
141k views
asked Jan 3, 2017 84.2k views
Matt Mower asked Jan 3, 2017
by Matt Mower
8.7k points
1 answer
0 votes
84.2k views
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.