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tatyana61 [14]
3 years ago
14

Find x and y when (2x+7y=9) and (3x+5y=3​

Mathematics
1 answer:
Tamiku [17]3 years ago
4 0
Here darling, hope it helps <33

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I need help, I don't get it.
marshall27 [118]

Answer:

x-726724=2

Step-by-step explanation:

it doesnt belong because it is wrong

6 0
3 years ago
Read 2 more answers
How do you do 4(x-3) you have to use distributive property to remove the parentheses..
Oksana_A [137]

Answer:

 4x -12

Step-by-step explanation:

Your question answers itself: you use the distributive property to remove the parentheses.

  4(x -3) = 4(x) +4(-3) = 4x -12

5 0
3 years ago
If f(x)=2x+1/x-4what is the value of f-1(3)
Zarrin [17]

By concepts of functions, the inverse of the <em>rational</em> function f(x) = (2 · x + 1)/(x - 4) is f⁻¹(x) = (4 · x + 1)/(x - 2), whose value at being evaluated at x = 3 is equal to 13.

<h3>How to determine the value of the inverse of a function</h3>

In this question we must determine the inverse of a given function and evaluate the resulting expression at a given value. First, we apply the following substitution:

f⁻¹(x) = x

x = f(x)

x = (2 · f⁻¹(x) + 1)/(f⁻¹(x) - 4)

Then we clear f⁻¹(x) within the expression:

x · (f⁻¹(x) - 4) = 2 · f⁻¹(x) + 1

x · f⁻¹(x) - 4 · x = 2 · f⁻¹(x) + 1

x · f⁻¹(x) - 2 · f⁻¹(x) = 4 · x + 1

f⁻¹(x) · (x - 2) = 4 · x + 1

f⁻¹(x) = (4 · x + 1)/(x - 2)

Lastly, we evaluate the function at x = 3:

f⁻¹(3) = (4 · 3 + 1)/(3 - 2)

f⁻¹(3) = 13

By concepts of functions, the inverse of the <em>rational</em> function f(x) = (2 · x + 1)/(x - 4) is f⁻¹(x) = (4 · x + 1)/(x - 2), whose value at being evaluated at x = 3 is equal to 13.

To learn more on inverse functions: brainly.com/question/2541698

#SPJ1

8 0
2 years ago
If f(x)=-3+7 and g(x)=-7+3, what is the value of f(-3) - g(3)
Andreyy89
F(x) = -3 + 7 = 4
g(x) = -7 + 3 = -4

f(-3) - g(3) = 4 - (-4) = 4 + 4 = 8
6 0
3 years ago
Solve the formula for a P=a+b+c
kirill115 [55]

Answer:

\huge \boxed{a= P-b-c}

Step-by-step explanation:

P=a+b+c

Subtracting b and c from both sides.

P-b-c=a+b+c-b-c

Simplifying both sides.

P-b-c=a

4 0
3 years ago
Read 2 more answers
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