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topjm [15]
4 years ago
8

When positive integer a, which has n digits, is multiplied by (n 2), the product is a number with (n 1) digits, all of whose dig

its are (n 1). how many instances of a exist?
Mathematics
1 answer:
ahrayia [7]4 years ago
6 0
Instead use WolframAlpha.com for math questions  I would paste the answer but a cretinous fop has "disabled" that feature by javascript -- which is trivial to circumvent but I won't bother with the time.
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Divide -3x3 - 4x2 + 4x +3 by x-2
kobusy [5.1K]

Answer:

-3x² - 10x - 16 r. \dfrac{-29}{x-2}

Step-by-step explanation:

You can easily do this through synthetic division:

First step is to get all the numeric coefficients of the expression and write them down. Don't forget to bring their signs along with them.

-3x³ - 4x² + 4x +3

    | -3     -4     +4    +3

    |______________

Next we find the root that is associated with the divisor:

x  - 2 = 0

x = 2

We use this and put it outside:

 2   | -3     -4     +4    +3

      |______________

Okay now we bring down the first coefficient:

  2  | -3     -4     +4    +3

      |______________

        -3

Then we multiply it by the root and put the product under the next coefficient:

2  x - 3 = -6

2  | -3     -4     +4    +3

    |<u>         -6                  </u>

      -3

Then we add them:

2  | -3     -4     +4    +3

    |<u>         -6                  </u>

      -3    -10

Do the same steps until the end:

2  | -3     -4     +4       +3

    |<u>         -6      -20     -32              </u>

      -3     -10     -16     -29

Now that you have that, remember that since the divisor is in the 1st degree, quotient will have a degree will be one degree below as well.

-3x² - 10x - 26

Your last coefficient is going to be your remainder:

-3x² - 10x - 16 r. \dfrac{-29}{x-2}

3 0
4 years ago
What is the slope below
pantera1 [17]

Answer:

-1

Step-by-step explanation:

We can find the slope by the change in y over the change in x

change in y = down 3   which is -3

change in x = to the right 3 = 3

change in y/ change in x = (-3/3) =-1

7 0
3 years ago
Read 2 more answers
Plz help me, plz help deku!?!
DanielleElmas [232]

Answer:

14 cm squared

Step-by-step explanation:

The shaded triangle is clearly half of the rectangle, and half of 28 is 14.

The other way you can look at it is that the dimensions of the rectangle are 4 cm and 7 cm. The area of a triangle equation is \frac{bh}{2}. So \frac{4(7)}{2} is 14.

7 0
3 years ago
Which line is parallel to a line whose slope is 2/5
Vera_Pavlovna [14]
3,-4
1,-8
Possible parrellell lines of the slope
4 0
4 years ago
This table shows the battery percentage of a phone after it
Vsevolod [243]

Answer:

yint -= (0,100) slope = -5 2/3

Step-by-step explanation:

yint is (0,100) because thats where it hits the y axis

slope equation is (y1-y2)/(x1-x2), just pick out any two points to do this with

(83-66)/(3-6)

17/-3

-5 2/3

5 0
3 years ago
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