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tensa zangetsu [6.8K]
3 years ago
12

If x+3y=7 and x-3y=1 what's y

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Subtract one equation from the other to eliminate <em>x</em> :

(<em>x</em> + 3<em>y</em>) - (<em>x</em> - 3<em>y</em>) = 7 - 1

6<em>y</em> = 6

<em>y</em> = 1

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the graph shown below expresses a redical function that can be written in the form f(x)= a(x+k)^1/n + c. what does the graph tel
Oliga [24]

The value of n given the form of the function is (b) positive odd number

<h3>How to interpret the graph?</h3>

The form of the graph is given as:

f(x) = a(x + k)^1/n + c

For the given graph, we have the following features:

a > 0 --- a is positive

k > 0 --- k is positive

c < 0 --- c is negative

If n is an even number, the function would be undefined because the even root of a number is undefined

However, the function is defined if n is an odd number,

Hence, the value of n given the form of the function is a positive odd number

Read more about functions at:

brainly.com/question/4025726

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8 0
2 years ago
Solve the system if equations: 3x+y+3z=4 <br> 4x-y+2x=5 <br> X-2y-z=0
Ugo [173]

Answer:

The answer is in step-by-step explanation

Step-by-step explanation:

3 x + y + 3 z = 4

4 x - y + 2 z = 5

x - 2 y - z = 0

4 0
2 years ago
Camila is driving on a long road trip. She currently has 10 gallons of gas in her car. Each hour that she drives, her car uses u
sasho [114]
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7 0
3 years ago
A cylinder has a volume of 2167 cubic feet and a height of 18 feet What is the area of the base?
natita [175]

Answer:

120.39ft²

Step-by-step explanation:

Hopefully that helps :)

6 0
3 years ago
Part 1
Dmitrij [34]

Answer:

a)  A n  (B' n C') =  {3, 9}.

b) (AUB) n (BUC) = {2,4,5,6,7,8}

Step-by-step explanation:

a)  Rewriting C ; C = {4,5,6,7,8}

B' = {3,5,7,9} and C' = {2, 3, 9}

so (B' n C') = {3, 9}

and A n  (B' n C') =  {3, 9}.

b)  {A U B} = { 2,3,4,5,6,7,8,9} and {B U C} = {2,4,5,6,7,8}

so (AUB) n (BUC) = {2,4,5,6,7,8}

4 0
3 years ago
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