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PtichkaEL [24]
3 years ago
5

Please select the best answer and click submit Solve kx-4=9 for x

Mathematics
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

Option B. x = \frac{13}{k}.

Step-by-step explanation:

The given equation is kx - 4 = 9

We will add 4 on both the sides of the equation

kx - 4 +4 = 9 +4

kx = 13

Now we will divide by k on both the sides of the equation

\frac{1}{k}(13x) = \frac{1}{k}13

x = \frac{13}{k}

Therefore Option B x = 13/k is the right answer.

Tamiku [17]3 years ago
3 0

Answer:

\large\boxed{B.\ x=\dfrac{13}{k}}

Step-by-step explanation:

kx-4=9\qquad\text{add 4 to both sides}\\\\kx=13\qquad\text{divide both sides by }\ k\neq0\\\\x=\dfrac{13}{k}

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I need answers pls I have a test right now
barxatty [35]

On question 9, x = 0.46284330

6 0
2 years ago
What is the rate of change for the function f(x)=2x-3
Stolb23 [73]

Answer:

2

Step-by-step explanation:

f(x) = 2x - 3 is a linear function

The rate of change of a linear function is the measure of the slope.

The equation is in slope- intercept form, that is

y = mx + c ( m is the slope and c the y- intercept )

y = 2x - 3 has slope m = 2

Thus rate of change = 2

4 0
3 years ago
Find the remainder for the quotient using either substitution or synthetic division.
zaharov [31]

(x - 5) is a factor of the polynomial function f(x) = x³ - x² - 17x -15 as there is no remaider.

<h3>What is a factor of a polynomial?</h3>

We know that if x = a is one of the roots of a given polynomial x - a = 0 is a factor of the given polynomial.

To confirm if x - a = 0 is a factor of a polynomial we replace f(x) with f(a) and if the remainder is zero then it is confirmed that x - a = 0 is a factor.

Given a polynomial function f(x) = x³ - x² - 17x -15.

If (x - 5) is it's factor then f(5) = 0.

∴ f(x) = x³ - x² - 17x -15.

f(5) = 5³ - 5² - 17(5) - 15.

f(5) = 125 - 25 - 85 - 15.

f(5) = 0.

So, the remainder is zero hence (x - 5) is a factor of the polynomial function f(x) = x³ - x² - 17x -15.

learn more about factor of a polynomial here :

brainly.com/question/26354419

#SPJ1

7 0
1 year ago
What is the correct value of f(-1) if f(x) = 2x2 – 3x – 9
Zina [86]

Answer:

-is a 4x ala 2 -3x -9

-or 4x2 -3x1-9x

4 0
3 years ago
Read 2 more answers
Please Help ASAP 20 points
oksano4ka [1.4K]
The answers to the questions

3 0
3 years ago
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