All categories

4 years ago

Simplify 9x + 4(x + 2) - 5:

Mathematics

2 answers:

Slav-nsk [51]4 years ago

7 0

Answer:

Step-by-step explanation:

9x+4x+8-5

=13x+3

vladimir1956 [14]4 years ago

4 0

The answer is 68
Instructions: follow the bedmas rule of solving.

You might be interested in

Find the equation of this line<br><br> y = [?]x + [ ] <br> Please help

larisa [96]

<h2>Writing an Equation of a Line in Slope-Intercept Form</h2><h3>Answer:</h3>

$y = [ -2 ] x + [ 1 ]\\$

<h3>Step-by-step explanation:</h3>

<em>Please refer to my answer from this Question to know more about Slope-Intercept Form: <u>brainly.com/question/24599351</u></em>

We must first find the slope.

<em>Please refer to my Answer from this Questions to know more about Slopes of a Line:</em>

<em><u>brainly.com/question/24640665</u></em>
<em><u>brainly.com/question/24638053</u></em>

We can see the marked points, $(0,1)$ and $(4, -7)$ , are on the line.

Solving for the slope:

$m = \frac{y_2 -y_1}{x_2 -x_1} \\ m = \frac{-7 -1}{4 -0} \\ m = \frac{-8}{4} \\ m = -2$

Now we can now solve for the $y$ -intercept.

<em>Please refer to the second paragraph of my Answer from this Question to know more about y-intercepts: <u>brainly.com/question/24606058</u></em>

We can see that the line intersected the $y$ -axis at $(0,1)$ so $b = 1$ .

5 0

3 years ago

I AM GONNA POST MORE QUESTIONS!!!!!! I AM SO STRESSED I HATE TESTS

Troyanec [42]

Answer:

the second statement is true

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

I FAIpQLSep5JOTD IBL

frozen [14]

Answer:

8 ft i think there is't much context to go off of though

Step-by-step explanation:

7 0

3 years ago

Find x<br> Solve the simultaneous equations<br> 3x + 2y = 27<br> 3x – y=9

Juli2301 [7.4K]

Answer:

I think it is this because it seems as if It is 2 separate equations.

a.x=9-2y/3

b.x=3+y/3

8 0

3 years ago

Using the quadratic formula to solve 7x^2-x=7, what are the values of x?

ycow [4]

Quadratic equation is $x= \frac{-b {\pm} \sqrt{ b^{2}-4ac}}{2a}$ WHEN
$a x^{2} +bx+c=0$

So, to make this true subtract 7 from each side.

The equation is now 7 $x^{2}$ - x - 7 = 0

Values for a, b, and c: a = 7, b = -1, c = -7

Plug these variables into the quadratic equation.

$x= \frac{1 {\pm} \sqrt{ -1^{2}-4*7*-7}}{2*-7}$

Square -1 to get 1 and multiply -4 x 7 x -7 to get 196.

$x= \frac{1 {\pm} \sqrt{1+196}}{2*-7}$

Multiply 2 x -7 to get -14, the denominator, and add 1 to 196.

$x= \frac{1 {\pm} \sqrt{197}}{-14}$

Since 197 is not a square number, and I don't know if you want to leave it in radical form or not, I will just because it's easier to understand.

Hope this helps!

8 0

3 years ago