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sergij07 [2.7K]
3 years ago
9

Use synthetic division to find the quotient and remainder. Express your answer as a polynomial.

Mathematics
1 answer:
OLEGan [10]3 years ago
8 0

1. 2x³ - 11x² + 13x - 21   ÷   x - 3

x - 3 = 0   ⇒ x = 3

3   |   2   -11   13   -21

    <u>|   ↓    6   -15    -6</u>

        2   -5    -2    -27

1. Answer: 2x² - 5x - 2 - \frac{27}{x - 3}

*************************************************************

2. 3x³ + 7x² - 13x + 10   ÷   x + 2

x + 2 = 0   ⇒   x = -2

-2  |   3    7   -13    10

    <u>|   ↓   -6    -2    30</u>

        3    1    -15    40

2. Answer: 3x² + x - 15 + \frac{40}{x + 2}

3. 2x³ + 13x² - 21x + 9   ÷   x - 1

x - 1 = 0   ⇒   x = 1

1  |   2    13   -21     9

    <u>|   ↓     2    15    -6</u>

        2    15    -6    3

3. Answer: 2x² + 15x - 6 + \frac{3}{x - 1}

4. 7x³ + 0x² - 8x + 16   ÷   x - 2

x - 2 = 0   ⇒   x = 2

2  |   7    0     -8     16

    <u>|   ↓    14    28    40</u>

        7    14    20    56

4. Answer: 7x² + 14x + 20 + \frac{56}{x - 2}

5. 8x⁴ - 14x³ - 71x² - 10x + 24   ÷   x - 4

x - 4 = 0   ⇒   x = 4

4  |   8   -14   -71    -10    24

    <u>|   ↓    32    72     4   -24 </u>

        8    18       1     -6     0

5. Answer: 8x³ + 18x² + x - 6


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The perimeter of a parallelogram is 72 meters. The width of the parallelogram is 4 meters less than its length. Find the length
Sidana [21]

Answer:

length = 20 mt

Width = 16 mt

Step-by-step explanation:

Let the length of the field be x

width of the field be y

Hence  formula of the perimeter is given as

P=2(x+y)

P=72(given)

72=2(x+y)

Dividing both sides by 2 we get

x+y=36---(A)

Also given that width of the parallelogram is 4 meters less than its length

Hence  

y=x-4

or x-y=4 ---(B)

Adding A and B  

2x=40

x=20

y=x-4

y=20-4=16

Hence length = 20 mt

Width = 16 mt

3 0
4 years ago
Find the volume of the cylinder.<br> r= 8 cm<br> h = 2 cm
nordsb [41]
Area of cylinder = area of circle x height
Pi x (8^2) x 2
= 128pi cm^3
4 0
3 years ago
Read 2 more answers
Please help
Murrr4er [49]
<h3>You have the correct answer. It is choice B. Nice work.</h3>

K is the midpoint, so \overline{IK} \cong \overline{GK} and \overline{JK} \cong \overline{HK}, and along with the congruent vertical angles (\angle GKH \cong \angle IKJ and \angle GKJ \cong \angle IKH), you would use the SAS (side angle side) congruence theorem to prove the inner pairs of triangles to be congruent.

So, \triangle HKG \cong \triangle JKI (top and bottom triangles) and \triangle GKJ \cong \triangle IKH (left and right triangles).

Then through CPCTC, we can show the corresponding pieces are congruent leading to \overline{GH} \cong \overline{JI} and \overline{GJ} \cong \overline{HI} showing the opposite sides of the quadrilateral are congruent. Therefore we do have a parallelogram and enough information to prove it as such.

Side note: CPCTC stands for "corresponding parts of congruent triangles are congruent".

3 0
4 years ago
Read 2 more answers
12) Find mZVUT if mZVUT = 10x +9,<br> m_BUT = 7x - 1, and mZVUB= 37º.
Mariulka [41]

Answer:

99°

Step-by-step explanation:

  • m∠VUT = 10x + 9
  • m∠BUT = 7x - 1
  • m∠VUB = 37°
  • m∠VUT = ?

<u>We see that</u>

  • m∠VUT = m∠BUT + m∠VUT
  • 10x + 9 = 7x - 1 + 37
  • 10x - 7x = 36 - 9
  • 3x = 27
  • x = 9

<u>Angle VUT measures:</u>

  • 10x + 9 = 10*9 + 9 = 99°
5 0
3 years ago
Help please! (turn your device sideways)​
makvit [3.9K]

Answer:

3x-2 ≥ 4

Step-by-step explanation:

3x-2 _ 4

3x _ 4+2

3x _ 6

x _ 2

Therefore, x ≥ 2

3x-2 ≥ 4

5 0
4 years ago
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