All categories

2 years ago

Help pls, will choose brainliest if explanation is provided

Mathematics

1 answer:

Nookie1986 [14]2 years ago

8 0

Answer:

$solve \: when \: (f + g) \:(4) \\ \\ first \: solve \: for \: f(x) \\ \: \\ solution \: .... \\ \\ f(x) = 4x - 3 \\ f(4) = 4(4) - 3 \\ f(4) = 16 - 3 \\ f(4) = 13 \\ \\ \\ now \: solve \: for \: g(x) \\ \: \\ solution \: .... \\ \\ g(x) = {x}^{3} + 2x \\ g(x) = {(4)}^{3} + 2(4) \\ g(x) = 64 + 8 \\ g(x) = 72 \\ \\ (f) - (g) = 13 - 72 \\ (f) -(g) = -59$

You might be interested in

If f (n)(0) = (n + 1)! for n = 0, 1, 2, , find the taylor series at a=0 for f.

Pie

Given that $f^{(n)}(0)=(n+1)!$ , we have for $f(x)$ the Taylor series expansion about 0 as

$f(x)=\displaystyle\sum_{n=0}^\infty\frac{(n+1)!}{n!}x^n=\sum_{n=0}^\infty(n+1)x^n$

Replace $n+1$ with $n$ , so that the series is equivalent to

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}$

and notice that

$\displaystyle\frac{\mathrm d}{\mathrm dx}\sum_{n=0}^\infty x^n=\sum_{n=1}^\infty nx^{n-1}$

Recall that for $|x|$ , we have

$\displaystyle\sum_{n=0}^\infty x^n=\frac1{1-x}$

which means

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}=\frac{\mathrm d}{\mathrm dx}\frac1{1-x}$
$\implies f(x)=\dfrac1{(1-x)^2}$

5 0

2 years ago

Simplify. 310−−√ please help me

slava [35]

Answer:

17.606

Step-by-step explanation:

root of 310 = 17.606

5 0

2 years ago

Read 2 more answers

Lan parents asked him to create a budget For his 1000 monthly income he determines That he would like to save the remaining amou

LiRa [457]

Answer:

for an equal income to everyone you can do 250 to each person adding up to 750 then 250 to save

Step-by-step explanation:

6 0

2 years ago

Here are five number cards. 2. 5 7 8 9 71 One of the cards is removed and the mean average of the remaining four number cards is

vovangra [49]

Answer

card number 2

5+7+8+9=24/4=6

Step-by-step explanation:

7 0

2 years ago

Christina sells pocketbooks. Christina makes a salary of $150 per week plus $10 for each pocketbook, p, she sells. This week Chr

Mrac [35]

Answer: 150 + 10x =270

Step-by-step explanation:

So basically she makes $150 per week automatically so u can write that. Then, she makes 10 dollars for each pocketbook she sells so that times x since we don’t know how many pocket books.

If u were to actually have to write how many pocket books you would do 270-150= 120. Then, 120/10= 12 pocketbooks.

4 0

2 years ago

Read 2 more answers