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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

Find the distance between the origin and (8,15)

stellarik [79]

The distance between the origin and (8,15) is 17

Step-by-step explanation:

We need to find the distance between the origin and (8,15)

We know that x and y coordinates at origin are (0,0)

The formula used to find distance is:

$Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$x_1=0, y_1=0, x_2=8,y_2=15$

Putting values and finding distance:

$Distance=\sqrt{(8-0)^2+(15-0)^2}$

$Distance=\sqrt{(8)^2+(15)^2}$

$Distance=\sqrt{64+225}$

$Distance=\sqrt{289}$

$Distance=17$

So, The distance between the origin and (8,15) is 17

Keywords: Distance between points

Learn more about Distance between points at:

#learnwithBrainly

8 0

4 years ago

Which expression is equivalent to 5.4−1.8 ? A. −1.8+5.4 B.−1.8−5.4 C. 1.8 + 5.4 D.1.8−5.4

Digiron [165]

The correct answer is A: -1.8 + 5.4. Adding a negative is the same as subtracting.

6 0

3 years ago

Read 2 more answers

Two more than4 times a number is -18

jonny [76]

-5, work backwards. you know 2 + 4 * ? = -18.
start by subtracting 2 from both sides giving you 4 * ? = -20.
now you divide 4 from both sides giving you ? = -5

i used ? to represent the missing number btw!!

6 0

4 years ago

What is the vertex of y=-x^2+4x+3

djverab [1.8K]

I actually don’t know this sorry..yk(for the points)

5 0

3 years ago

2/5 divided by 3 1/10

Amanda [17]

Answer:

$\frac{4}{31}$