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larisa [96]
3 years ago
10

Simplify. 13x+4−8+6x−13x−4

Mathematics
2 answers:
lyudmila [28]3 years ago
6 0

Answer:

6x-8

Step-by-step explanation:

Subtract 8 from 4 to get −4.

13x−4+6x−13x−4

Combine 13x and 6x to get 19x.

19x−4−13x−4

Combine 19x and −13x to get 6x.

6x−4−4

Subtract 4 from −4 to get −8.

6x−8

Fittoniya [83]3 years ago
4 0

Answer:

−8+6x

Step-by-step explanation:

ELIMINATE OPPOSITES--

13x+4−8+6x−13x−4

then you have your answer--

−8+6x

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Which statement is true regarding the functions of the graph?
gregori [183]

Answer:

f(- 3) = g(- 3)

Step-by-step explanation:

f(x) and g(x) are equal at the point of intersection.

When x = - 3 , f(- 3) = - 4 and g(- 3) = - 4

Thus

f(- 3) = g(- 3)

4 0
3 years ago
Help I Don’t. Get This one
DochEvi [55]

Answer: x = 8

Each angle is 120 degrees

===============================================================

Explanation:

The top and bottom angles are vertical angles, so they are congruent to each other. This means they are the same measure.

14x+8 = 4x+88

14x+8-8 = 4x+88-8 ... subtract 8 from both sides

14x = 4x+80

14x-4x = 4x+80-4x ... subtract 4x from both sides

10x = 80

10x/10 = 80/10 ... divide both sides by 10

x = 8

Once you know x, you can figure out each angle

top angle = 4x+88 = 4*8+88 = 120 degrees

botom angle = 14x+8 = 14*8+8 = 120 degrees

Both angles are 120 degrees so this helps confirm we have the proper x value


7 0
3 years ago
Find the roots of the equation <br> x^2 +7= 2x<br> express your answer in simplest a +bi form
Fittoniya [83]

x^2+7=2x\\\\\implies x^2 -2x +7 =0\\\\\text{Apply quadratic formula,}~ x =\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\text{in this case,}~ a = 1, b= -2 ~\text{and}~ c = 7\\\\\\x= \dfrac{-(-2) \pm \sqrt{(-2)^2 -4\cdot 1 \cdot 7}}{2\cdot 1}\\\\\\\implies x =\dfrac{2 \pm \sqrt{-24}}{2}\\\\\\\implies x = \dfrac{2 \pm i\sqrt{24}}2\\\\\implies x =\dfrac{2 \pm i2\sqrt{6}}2\\\\\implies x = \dfrac{2\left(1 \pm i  \sqrt 6\right)}2\\\\\implies x = 1 \pm i\sqrt 6\\\\

\text{Hence,}~ x = 1-i\sqrt 6 ~\text{or}~ x = 1+i\sqrt 6

7 0
3 years ago
Ms.hernandez has $100 to spend on parking and admission to the zoo. The parking will cost $7, and admission tickets will cost $1
Mice21 [21]
The answer is Ms Hernandez can bring up to 6 people to the zoo.

x - <span> the number of people that she can bring to the zoo
</span><span>The parking will cost $7: a = 7
</span><span>Admission tickets will cost $15.50 per person: b = 15.50x
She can spend on parking and admission tickets </span><span>$100:
a + b </span>≤<span> 100

a = 7
b = 15.50x

7 + 15.50x </span>≤<span> 100
15.50x </span>≤<span> 100 - 7
15.50x </span>≤<span> 93
x </span>≤<span> 93 / 15.50
x </span>≤ 6
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