3 years ago

First find f+g, f-g, f-g and f\g. Then determine the domain for each function f(x)=3×+7,g(×)=×+9 (f+g)(×)=

1 answer:

8 0

I'll do f+g, you try the others on your own and comment if you need help with them! For f+g, you're just going to add the two functions together:
$f(x)=3x+7$
$g(x)=x+9$
$(f+g)(x)=(3x+7)+(x+9)=4x+16$

You might be interested in

( 3.6 +0.4 ) + 0.25 =

gtnhenbr [62]

Answer:

Step-by-step explanation:

Simplify 3 ratical- 1000

8 0

3 years ago

Use the recursive formula f(n) = 0.4 . f(n-1) + 12 to determine the 2nd term if f(1) = 4.

Irina18 [472]

Answer:

Assuming you have $f(n)=0.4f(n-1)+12$ with $f(1)=4$ , the answer is f(2)=13.6.

Step-by-step explanation:

I think that says $f(n)=0.4f(n-1)+12$ with $f(1)=4$ .

Now we want to find $f(2)$ so replace n with 2:

This gives you:

$f(2)=0.4f(2-1)+12$

$f(2)=0.4f(1)+12$

$f(2)=0.4(4)+12$

$f(2)=1.6+12$

$f(2)=13.6$

5 0

3 years ago

Read 2 more answers

need explanation on answer: Cameron makes a quilt design using four congruent triangles as shown below. 4 connecting congruent t

AysviL [449]

Answer:

its 64cm

Step-by-step explanation:

7 0

3 years ago

Lou wants to make a coffee mixture to sell. He is going to mix Sumatra coffee which costs $2.50 per pound with Columbian coffee

Scilla [17]

To answer this question you need to create 2 equations:
S+C=50
2.50S+3.75C=3.35*(50)
S=50-C -so now you can plug in S into the second equation
2.50*(50-C)+3.75C=167.5
Now you just need to solve this equation, the final answer will be 34 pounds of colombian coffee and 16 pounds of sumatra coffee

5 0

3 years ago

Of the following fractions3/7, 5/8, 7/13, and 11/19 Which is the largest

Kobotan [32]

Answer:

5/8

Step-by-step explanation:

5/8=0.6.25

0.625> all the other numbers

8 0

2 years ago