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ladessa [460]
3 years ago
7

Maria says that the store can hold about 180 cans. She shows her work as follows. First,20x5=180 100 Next,20x4=80 then,100+80=18

0 Is Maria correct?
Mathematics
1 answer:
nevsk [136]3 years ago
3 0
Maria is correct according to the problem
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(K3+2k2-82k-28)/(k+10)
Ne4ueva [31]

So for this, we will be using synthetic division. To set it up, have the equation so that the divisor is -10 (since that is the solution of k + 10 = 0) and the dividend are the coefficients. Our equation will look as such:

<em>(Note that synthetic division can only be used when the divisor is a 1st degree binomial)</em>

  • -10 | 1 + 2 - 82 - 28
  • ---------------------------

Now firstly, drop the 1:

  • -10 | 1 + 2 - 82 - 28
  •       ↓
  • -------------------------
  •        1

Next, you are going to multiply -10 and 1, and then combine the product with 2.

  • -10 | 1 + 2 - 82 - 28
  •       ↓ - 10
  • -------------------------
  •        1 - 8

Next, multiply -10 and -8, then combine the product with -82:

  • -10 | 1 + 2 - 82 - 28
  •       ↓ -10 + 80
  • -------------------------
  •        1 - 8 - 2

Next, multiply -10 and -2, then combine the product with -28:

  • -10 | 1 + 2 - 82 - 28
  •       ↓ -10 + 80 + 20
  • -------------------------
  •        1 - 8 - 2 - 8

Now, since we know that the degree of the dividend is 3, this means that the degree of the quotient is 2. Using this, the first 3 terms are k^2, k, and the constant, or in this case k² - 8k - 2. Now what about the last coefficient -8? Well this is our remainder, and will be written as -8/(k + 10).

<u>Putting it together, the quotient is k^2-8k-2-\frac{8}{k+10}</u>

8 0
3 years ago
Find the value of x and y
Virty [35]

Answer:

x=14

y=12

Step-by-step explanation:

so you add 3 plus 9 and 2 plus 4 with 8 and you should get x- 14 and y= 12

Hope this helps

3 0
3 years ago
The value of 2x + 2y, for x = 7 and y = 3, is 50.<br><br> True<br> False
Lilit [14]
2x+2y =50
2(7)+ 2(3)=50
14+6 =50
20=/=50

This is false because when you substitute the variables with their numbers and then multiply and add, your answer does not equal 50
5 0
3 years ago
Read 2 more answers
What is the equation of a circle centered at the origin with radius 20.. i cant find the answer and i even tried?
KIM [24]
General equation of a circle with centre (h, k) is given by:

(x - h)^{2} + (y - k)^{2} = r^{2}

Now, the origin is the centre and radius is 20, so substituting these points in yields:
x^{2} + y^{2} = 20^{2}
x^{2} + y^{2} = 400
4 0
3 years ago
Read 2 more answers
Help me..................... i neeed it
CaHeK987 [17]
Just multiply 38 by 50. 
1,900
7 0
3 years ago
Read 2 more answers
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