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skelet666 [1.2K]
3 years ago
9

Please don't give me a link PLEASE HELPPP

Mathematics
1 answer:
KiRa [710]3 years ago
7 0

Answer:

study more so you can understand

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One elevator is on the 8th floor ( 8 floors above the ground floor) and the other elevator is one floor below the ground floor.
blagie [28]

Answer:

They're 9 floors apart

Step-by-step explanation:

5 0
3 years ago
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What is the result of dividing x³-4 by x+2​
Dmitry [639]

Answer: x2 - 2x + 4 - 12/(x + 2)

Step-by-step explanation:

6 0
3 years ago
F(x) = x2 + 2x - 2<br> Show graph
Alexandra [31]

Answer:

Step-by-step explanation:

f(x) = x2 + 2x - 2  should be rewritten using " ^ " to indicate exponentiation:

f(x) = x^2 + 2x - 2.

We find a couple of key points and use the fact that this parabola is symmetric about the line

          -2

x = ----------- = -1.  When x = -1, y = f(-1) = (-1)^2 + 2(-1) - 2, or 1 - 2 -2, or -3.

        2(1)

Thus the vertex is at (-1, -3).  The y-intercept is found by letting x = 0:  y = -2.  The axis of symmetry is x = -1.

Graph x = -1 and then reflect this y-intercept (0, -2) about the line x = -1, obtaining (-2, -2).  If necessary, find 1 or two more points (such as the x-intercepts).

To find the roots (x-intercepts), set f(x) = x^2 + 2x - 2 = 0 and solve for x.

Completing the square, we obtain x^2 + 2x + 1 - 2 = + 1, or (x + 1)^2 = 3.

Taking the square root of both sides yields x + 1 = ±√3.  One of the two roots is x = 1.732 - 1, or 0.732, so one of the two x-intercepts is (0.732, 0).

6 0
3 years ago
THE RIGHT ANSWER WILL RECIEVE A BRAINLEST AND POINTS AND THANXS!!!
kotegsom [21]

Answer:

1. F

2. G

3. H

4. E

5. C

6. B

7. A

8. D

Step-by-step explanation:

1. For a horizontal line, this is zero. F. Slope

2. These lines have the same slope.  G Parallel Lines

3. These lines meet at 90°. H Perpendicular Lines

4. This is where two lines meet.  E. Point of Intersection

5. For the line 3 2 6 x y   , this is −3. C. Y-intercept

6. The numbers 10 and 1 /10 are examples.  B Reciprocals

7. This is the name for an equation of a line  in the form Ax By C    0. A. Standard Form

8. For a vertical line, the value of x is constant  and equal to this D. x-intercept


8 0
3 years ago
6.
Likurg_2 [28]

Answer:

D. inverse variation; xy = 8

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

For direct variation the equation relating x and y is

y = kx, that is

k =  

Using the values in the table

= 2

=  

k is not constant hence not direct variation

For inverse variation the equation relating x and y is

y = , that is

k = xy

Using the values in the table

2 × 4 = 8

4 × 2 = 8

8 × 1 = 8

12 ×  = 8

Thus the table represents inverse variation with xy = 8

...............................................................................................................................................

Answer:

D. inverse variation; xy = 8​

Step-by-step explanation:

First we need to understand the concept of direct and inverse relation or proportion between variables.

When value of one variable increases with the increase in value of second variable, this relation is called directly proportional.

When value of one variable decreases with the increase in value of second variable, this relation is called inverse proportion.

You can observe it it daily life example too. Like if you pour water in glass, its weight will increase. If you add more water, the weight of glass will increase more. It is direct proportion. But on the other hand, if one man do any particular task in 2 hours, two men will perform task in less time, which means the hours of work are inversely proportional to number of men.

Now in given equation you can see that, when x = 2, y =4, but when x = 4, y =2, which means value of y is decreasing with the increase in value of x. So this relation is inverse.

You can also satisfy the equation by putting values of x and y.

xy = 8

From first column

2x4 = 8

From last column

12x(2/3) = 8

6 0
3 years ago
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