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frozen [14]
4 years ago
15

-36+7x=76-x please solve for x

Mathematics
1 answer:
Tema [17]4 years ago
3 0
X represents 14 so the answer should be x=14
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In simplest radical form, what are the solutions to the quadratic equation 6 = x2 - 10/?
pickupchik [31]

Answer:

x = 5 \± \sqrt{31}

Step-by-step explanation:

Given

6 = x^2 - 10x

Required

The solution in radical form

6 = x^2 - 10x

Rewrite as:

x^2 - 10x - 6 = 0

Using the quadratic formula, we have:

x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}

Where

a = 1

b = -10

c = -6

So, we have:

x = \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*(-6)}}{2*1}

x = \frac{10 \± \sqrt{100 +24}}{2*1}

x = \frac{10 \± \sqrt{124}}{2}

Split the roots

x = \frac{10 \± \sqrt{4 * 31}}{2}

Express \sqrt 4 as 2

x = \frac{10 \± 2\sqrt{31}}{2}

Split the fraction

x = \frac{10}{2} \± \frac{2\sqrt{31}}{2}

x = 5 \± \sqrt{31}

5 0
3 years ago
Does anyone know about this I will give brainliest for the correct answer I really need help
Mandarinka [93]

Answer:

32

Step-by-step explanation:

y

8 0
3 years ago
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I need help with question 11 pleaseeeeeee
ikadub [295]
The base of the prism is a 3:4:5 right triangle.
One of the legs is its base and the other is its height. (The longest side is the hypotenuse!)

The area of the triangular base is bh/2 = (9)(12) / 2. There are two of these.
There are also three rectangular sides on the prism.
Their dimensions are 9 by 20, 12 by 20, and 15 by 20.

You can do the arithmetic from here.
And the answer is 828cm ^2
6 0
3 years ago
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A clothing company is printing its fall catalog. Each copy of the catalog will be 347 pages long. If the printer has printed 7,2
klemol [59]

Answer:

21

Step-by-step explanation:

7 0
3 years ago
The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and
Travka [436]

Answer:

3.2 feet


Step-by-step explanation:

The equation  f(x)=-0.3x^{2}+2x  shows the height of water [f(x)] and horizontal distance [x].

<em>Given the </em><em>horizontal distance is 4 feet</em><em>, they want to know the height.</em>


<em>Simply put 4 in x of the equation and solve for f(x). So,</em>

<em>f(x)=-0.3(4)^{2}+2(4)\\f(x)=3.2</em>

So, the height of the water was 3.2 feet above the ground.

4 0
3 years ago
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