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Dahasolnce [82]
3 years ago
7

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)(×)=

Mathematics
1 answer:
Lemur [1.5K]3 years ago
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

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3 years ago
Need some math help 50pts
mina [271]

Answer:

angle 1 and 3 are 127.3 degrees and angle 2 is 52.7 degrees

Step-by-step explanation:

so angle 2 is also 52.7 degrees because angle 2 and 4 are  vertical oppostite angles  

so we can look at it now that we have to find angle 1. since we know a line is 180 degrees we make angle 1 plus angle 2 equal to 180

let angle 1 be x

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5 0
2 years ago
Read 2 more answers
A bag contains 15 marbles. The probability of randomly selecting a green marble is One-fifth. The probability of randomly select
dsp73

Given:

Total number of marbles = 15

Probability of randomly selecting a green marble = \dfrac{1}{5}.

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble = \dfrac{2}{25}.

To find:

The number of blue marbles.

Solution:

Let the number of blue marbles be x.

\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

P(Blue)=\dfrac{x}{15}

It is given that,

P(Green)=\dfrac{1}{5}

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is \dfrac{2}{25}. So,

P(Green)\times P(Blue)=\dfrac{2}{25}

\dfrac{1}{5}\times \dfrac{x}{15}=\dfrac{2}{25}

\dfrac{x}{75}=\dfrac{2}{25}

Multiply both sides by 75.

\dfrac{x}{75}\times 75=\dfrac{2}{25}\times 75

x=2\times 3

x=6

Therefore, the number of blue marbles in the bag is 6.

3 0
3 years ago
Which is bigger -32 or 13.8?
Tpy6a [65]
13.8 is bigger being a positive number.
4 0
2 years ago
Use breaking apart to find each product 6 times 6
masya89 [10]
So the anser would be (3×6)+(3×6)=36 because 3×6 is 18 and if you multiply 18×2=36 so (3×6)+(3×6)=36
6 0
3 years ago
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