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Rainbow [258]
3 years ago
15

K^3-27 in difference of cubes

Mathematics
1 answer:
Luda [366]3 years ago
8 0

Answer:

(k - 3)(k^2 + 3k + 9)

Step-by-step explanation:

Base equation:

(k^3 - 3^3)

The first bracket will be a - b, second will be:

a^2 + ab + b^2

(k - 3)(k^2 + 3k + 9)

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Does anybody know this?
dedylja [7]

Answer:

here you go , all four completed, took me some time , hipe i was able to help you out tho

4 0
2 years ago
On the day that a certain celebrity proposes marriage, 252525 people know about it. Each day afterward, the number of people who
Serhud [2]

Answer:

A

Step-by-step explanation:

The graphs are attached.

First of all, the day proposal goes out, 25 people know, so the initial condition is y = 25 at x = 0.

Hence, graph would start at y = 25.

Looking at the graphs, we can eliminate B and D immediately because they start at 50.

Now, it says every day, this number (y) triples, so 1 day after, it would be:

25 * 3 = 75

So, the graph would show x = 1 and y = 75

We can eliminate "C" as it doesn't show 75 at x = 1.

And we look at A and it is correct.

So,

A is the graph of the situation represented.

6 0
3 years ago
Read 2 more answers
The data set shows the number of hours per week that each student in a class spends studying at home. What is the shape of the d
AVprozaik [17]

Answer:

The answer is symmetrical

Step-by-step explanation:

            x

        x  x  x

    x  x  x  x  x

x   x  x  x  x  x  x

___________________________

1   2  3  4  5  6 7

4 0
3 years ago
Please answer this correctly, and you'll recieve brainliest. I want the CORRECT answer!
mixer [17]

Answer:

x=-10

Step-by-step explanation:

Have a great day :))

6 0
3 years ago
The diameter of Circle terminates on the circumference of the circle at​ (3,0) and (3,−7).. Write the equation of the circle in
Verdich [7]

Step-by-step explanation:

that means the center of the circle is exactly in the middle between the 2 points.

and since both points have the same x value (so, the diameter here is a vertical line), it is ready to get the y value of the middle : (-7 - 0) / 2 = -3.5

so, the coordinates of the center are (3, -3.5).

and that makes the standard circle equation

(x - h)² + (y - k)² = r²

to

(x - 3)² + (y + 3.5)² = 3.5² = 12.25

as h, k are the coordinates of the center, and r is the radius (half the diameter).

7 0
2 years ago
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