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devlian [24]
3 years ago
8

Solve for equation for x: 5^2 – 10x – 6 = 0

Mathematics
1 answer:
MArishka [77]3 years ago
4 0

Answer: x= 1.9

Step-by-step explanation:

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Help me please ?!!!!
blondinia [14]

Answer:

<em>The slope of the line is -1</em>

Step-by-step explanation:

<u>Slope of a Line</u>

Suppose we know a given line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated as follows:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

From the table in the image, we select the points (1,4) (3,2). The slope is:

\displaystyle m=\frac{2-4}{3-1}=\frac{-2}{2}=-1

Now select two other points like (5,0) (7,-2)

\displaystyle m=\frac{-2-0}{7-5}=\frac{-2}{2}=-1

Following the same procedure with any other pair of points, we'll get the very same result:

The slope of the line is -1

4 0
3 years ago
What is the length of a diagonal of a cube with a side length of 10 cm? 200 cm 210cm 300 cm 320cm
Scilla [17]

Answer:

The length of the diagonal of the cube = √(3 × 10²) = √300 cm

Step-by-step explanation:

* Lets revise the properties of the cube

- It has six equal faces all of them are squares

- It has 12 vertices

- The diagonal of the cube is the line joining two vertices in opposite

 faces (look to the attached figure)

- To find the length of the diagonal do that:

# Find the diagonal of the base using Pythagoras theorem

∵ The length of the side of the cube is L

∵ The base is a square

∴ The length of the diagonal d = √(L² + L²) = √(2L²)

- Now use the diagonal of the base and a side of a side face to find the

 diagonal of the cube by Pythagoras theorem

∵ d = √(2L²)

∵ The length of the side of the square = L

∴ The length of the diagonal of the cube = √[d² + L²]

∵ d² = [√(2L²)]² = 2L² ⇒ power 2 canceled the square root

∴ The length of the diagonal of the cube = √[2L² + L²] = √(3L²)

* Now lets solve the problem

∵ The length of the side of the square = 10 cm

∴ The length of the diagonal of the cube = √(3 × 10²) = √300 cm

- Note: you can find the length of the diagonal of any cube using

 this rule Diagonal = √(3L²)

7 0
3 years ago
Read 2 more answers
The transformations to the parent function of a quadratic equation are given below. write an equation of the new function in ver
musickatia [10]

Answer:

<h2>11.f(x)=^2-3</h2>

Step-by-step explanation:

<h2>12.And slide everything five units down. So a over here that's negative three negative one. So if we slide at five you just down we go one two three four five and get here.</h2>

Hope it helps

3 0
3 years ago
You bought a car for $20,000. You have owned it for one year, and it is now worth $16,000. What is the percent decrease in your
Ganezh [65]
I think it'd be 20%.. I could be wrong. 
7 0
3 years ago
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What is the slope of the line that passes through (3,-7) and (-1,1)
Yanka [14]
-2 is the slope of the line

8 0
3 years ago
Read 2 more answers
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