All categories

1 year ago

Question 3 of 10

Mathematics

1 answer:

victus00 [196]1 year ago

7 0

Answer:

2x^3-8x+5x^2-20

2x(x^2-4)+5(x^2-4)

(2x+5)(x^2-4)

(2x+5)(x+2)(x-2)

You might be interested in

The force of gravity on the moon is approximately one sixth that of earth. the direct variation equation for weight on earth com

Inga [223]

Plug in 180 for e and solve for m

8 0

2 years ago

Kendra is buying an outfit that is on sale for 20% off. The original price of the outfit is $109. What is the sale price? $130.8

aliya0001 [1]

$109 X 20%
$109 X 0.2=$21.8
$109-$21.8=$87.20

7 0

2 years ago

Read 2 more answers

Please help if you can pic attatched

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

$CI=\left[\begin{array}{ccc}1&6&0\\0&1&2\\1&-1&3\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]$

Subtract row 3 from row 1:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&7&-3\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\1&0&-1\end{array}\right]$

Subtract row 3 from 7 times row 2:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&0&17\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\-1&7&1\end{array}\right]$

Divide row 3 by 17:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&0&1\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

Subtract 2 of row 3 from row 2:

$\left[\begin{array}{ccc}1&6&0\\0&1&0\\0&0&1\end{array}\right] \left[\begin{array}{ccc}1&0&0\\\frac{2}{17} &\frac{3}{17} &\frac{-2}{17} \\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

Subtract 6 of row 2 from row 1:

$\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] \left[\begin{array}{ccc}\frac{5}{17}&\frac{-18}{17}&\frac{12}{17}\\\frac{2}{17} &\frac{3}{17} &\frac{-2}{17} \\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

$C^{-1}=\frac{1}{17} \left[\begin{array}{ccc}5&-18&12\\2&3&-2\\-1&7&1\end{array}\right]$

$C^{-1}b=\frac{1}{17} \left[\begin{array}{ccc}5&-18&12\\2&3&-2\\-1&7&1\end{array}\right]\left[\begin{array}{c}10&1&3\end{array}\right]=\left[\begin{array}{c}4&1&0\end{array}\right]$

3 0

2 years ago

7 hours to travel 4830 kilometers. What is the unit rate for kilometers per hour?

soldi70 [24.7K]

Answer:

690 km per hour

Step-by-step explanation:

4830 divided by 7 is 690 km per hour

3 0

2 years ago

What is the 33rd term of this arithmetic sequence?<br><br> 12, 7, 2, -3, -8, …

Debora [2.8K]

a1 = 12

common difference = -5

a(n) = a1 + d(n - 1)

a(n) = 12 - d(n-1)

so if 33rd term then

a(33) = 12 -5(32)

a(33) = 12 - 160

a(33) = -148

Answer

-148

6 0

2 years ago