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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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Answer:

a = 18

Step-by-step explanation:

a/6 = 3

Multiply each side by 6

a/6*6=3 *6

a = 18

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the height, h cm, of a table is measured s 72cm correct to the nearest centimeters. conplete the following statement to show the
gogolik [260]
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Can someone tell me what’s going on here
lora16 [44]

Answer:

c = 105 degres

Step-by-step explanation:

When two lines cross like that and form an x, the opposite sides are equal (so the angle below the 75 degree one is also 75 degees). Using this, you can figure out the rest.

If both the top an bottom are equal, you know that 150 degres are taken (75+75) and you know that there can only be 360 degres in total here, so you subtract 150 from 360 and get 210. Now you know that the last two sides together are 210, and since they are equal, you divide it by two to get 105 degrees.

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The little Mexican restaurant sells only two kinds of beef burritos mucho beef sandwich Lucho beef last week the restaurant orde
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Answer:

Cost of a single Mucho beef burrito: \$5.5

Cost of a double Mucho beef burrito: \$6.5

Step-by-step explanation:

<h3> The exercise is: "The Little Mexican restaurant sells only two kinds of beef burritos: Mucho beef and Mucho Mucho beef. Last week in the restaurant sold 16 orders of the single Mucho variety and 22 orders of the double Mucho. If the restaurant sold $231 Worth of beef burritos last week and the single neutral kind cost $1 Less than the double Mucho, how much did each type of burrito cost?"</h3>

Let be "x" the the cost in dollars of a single Mucho beef burrito and "y" the cost in dollars of a double Mucho burrito.

Set a system of equations:

\left \{ {{16x+22y=231} \atop {x=y-1}} \right.

To solve this system you can apply the Substitution Method:

1. Substitute the second equation into the first equation and solve for "y":

16(y-1)+22y=231\\\\16y-16+22y=231\\\\38y=231+16\\\\y=\frac{247}{38}\\\\y=6.5

2. Substitute the value of "y" into the second equation and evaluate in order to find the value of "x":

x=6.5-1\\\\x=5.5

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3 years ago
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