Use f(x)=3x/x+1 and g(x)=-2/x+1 to find the following

Mathematics

1 answer:

maksim [4K]3 years ago

4 0

Answer:

a) 3x-2/x+1

b)14/5 as an improper fraction or 2 and 4/5 as a mixed number

Step-by-step explanation:

a) You just have to add f(x) and g(x) together and since the denominator is the same you can just add the numerators which gives you 3x-2/x+1

b)You have to plug in 4 to every x value in both functions so you get 3(4)/4+1 for f(x) and -2/4+1 for g(x) this simplifies down to 12/5 and -2/5 you then have to subtract those two fractions as stated in part b which gives you 14/5 as an improper fraction or 2 and 4/5 as a mixed number

You might be interested in

The best rule of thumb in assessment is to be sure children understand one-digit numbers before going on to:

Tpy6a [65]

Before going to B.two-digit addition

4 0

4 years ago

We did not find results for: A measure of malnutrition, called the pelidisi, varies directly as the cube root of a person's w

asambeis [7]

$\bf \qquad \qquad \textit{double proportional variation}\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\$

$\bf \begin{cases}
p=pedalisi\\
w=weight\\
s=\textit{sitting height}
\end{cases}\quad 
\begin{array}{llll}
%pelidisi, varies directly as the cube root of a person's weight in grams and inversely as the person's sitting height in centimeters.
\textit{pelidisi varies directly}\\
\textit{as cube root of weight}\\
\textit{and inversely to }\\
\textit{sitting height}
\end{array}\implies p=\cfrac{k\sqrt[3]{w}}{s}\\\\
-------------------------------$

$\bf \textit{we know that }
\begin{cases}
w=48,820\\
s=78.7\\
p=100
\end{cases}\implies 100=\cfrac{k\sqrt[3]{48820}}{78.7}
\\\\\\
100\cdot 78.7=k\sqrt[3]{48820}\implies \cfrac{7870}{\sqrt[3]{48820}}=k
\\\\\\
thus\qquad \boxed{p=\cfrac{\frac{7870}{\sqrt[3]{48820}}\sqrt[3]{w}}{s}}
\\\\\\
\textit{now, what is \underline{p} when }
\begin{cases}
w=54,688\\
s=72.6
\end{cases}?\implies p=\cfrac{\frac{7870}{\sqrt[3]{48820}}\sqrt[3]{54688}}{72.6}$

now, if that value is less than 100, then the fellow is "undernourished", otherwise, is overfed.

3 0

4 years ago

Pls do all three:) I will mark brainliest!

asambeis [7]

Answer:

1. C

2. D

3. B

Step-by-step explanation:

3 0

3 years ago

a boy is 26 years younger than his father in 3 years time his age will be one third his father's age. Find the boy's present age

larisa [96]

Answer:

61 years old

Step-by-step explanation:

26 plus 3 is 29 and 29 times 3 is 87 and 87 minus 29 is 61

3 0

3 years ago

Read 2 more answers

5. A real-estate agent is trying to determine the relationship between the distance a 3-bedroom home is

pshichka [43]

Hi bro I am going out of the way for the first class and then I’ll be back to work and I 6565567665666 and I can send you the email address so you please send me a text message me when I can see it

8 0

3 years ago