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den301095 [7]
3 years ago
11

Let f(x) = 7x − 13. Find f−1(x)

Mathematics
1 answer:
Anika [276]3 years ago
4 0

Step-by-step explanation:

let f(x)=y

y=7x-13

y+13=7x

y+13/7=x

f-1(x)=x+13/7

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your family is driving to the beach. you travel 200kilometers in the first two hour. during the next hour you stop for lunch and
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8

Step-by-step explanation:

4 0
3 years ago
(2w-5)(w+7) so far I got 2w^2 + 9w + ?
FromTheMoon [43]

Answer:

=2w2+9w−35

Step-by-step explanation:

(2w+−5)(w+7)

(2w)(w)+(2w)(7)+(−5)(w)+(−5)(7)

2w2+14w−5w−35

2w2+9w−35

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2 years ago
What is x 2 −6x=-156
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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A student is trying to solve the system of two equations given below: equation p: y z = 6 equation q: 3y 4z = 1 which of these i
Vadim26 [7]

<u>Option C is correct </u><u>(y + z = 6) ⋅ −3</u>

What is a linear equation in math?

  • A linear equation only has one or two variables.
  • No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
  • When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.

As per the statement -

A student is trying to solve the system of two equations given below:

Equation P:   y + z = 6              ....[1]

Equation Q:  3y + 4z = 1           ....[2]

Multiply the equation [1] by -3 to both sides we have;

-3 .( y + z = 6 ) ⇒ -3y -3z = -18..........(3)

                   

Add equation [2] and [3] to eliminate the y-term;

z = -17

Therefore, the  possible step used in eliminating the y-term is, (y + z = 6) ⋅ −3

Learn more about linear equation

brainly.com/question/11897796

#SPJ4

<u>The complete question is -</u>

A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 3y + 4z = 1 Which of these is a possible step used in eliminating the y-term?

(y + z = 6) ⋅ 4

(3y + 4z = 1) ⋅ 4

(y + z = 6) ⋅ −3

(3y + 4z = 1) ⋅ 3

6 0
1 year ago
1. Solve for the value of x
Tamiku [17]

Answer:

<h3><u>x = 18</u></h3>

Explanation:

  • Line E B C Needs To Equal 180°
  • Create An Equation

3x + 5 + 3x + 4 + 3x + 9 = 180

  • Simplify Both Sides Of The Equation

(3x + 3x + 3x) + (5 + 4 + 9) = 180( Combine Like Terms)

9x + 18 = 180

9x + 18 = 180

  • Subtract 18 From Both Sides

9x + 18 − 18 = 180 − 18

9x = 162

Divide Both Sides By 9

9x / 9 = 162 / 9

<h3><u>x = 18</u></h3>
7 0
3 years ago
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