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VARVARA [1.3K]
4 years ago
5

Find any rational roots of P (x) P(x) =3x^4-4x^3-2x -7

Mathematics
1 answer:
Over [174]4 years ago
4 0

Answer:

roots are 1, 1/3, 7, 7/3

Step-by-step explanation:

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Find the value of n 5^10 ÷ 5^8=(1/5)^n
postnew [5]

Answer:

5^10 / 5^8 = 5^2 = 25 so the equation becomes 25 = (1/5) ^ n. This means that n = -2.

8 0
3 years ago
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Complete the pattem 9 18 27 36##​
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7 0
3 years ago
Explain why 6:4 and 18:8 are not equivalent ratios
Westkost [7]

Answer:

False, 6:4 and 18:8 are equal ratios.

Step-by-step explanation:

Given data:

6:4 ≠ 18:8

Explanation.

1. 6:4 = 6/4 = 3/2

2. 18:8= 18/8 = 9/4 = 3/2

Hence proved:

                                            6:4 = 18:8

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4 years ago
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Function rule and y intercept
stiks02 [169]

to get the equation for any straight line, all we need is two points from it, so hmmm say from this table let's use (2,0) and (6,-8)

\bf \begin{array}{|r|r|r|r|r|r|} \cline{1-6} days&x&2&4&6&8\\ \cline{1-6} dollars&y&0&-4&-8&-12\\ \cline{1-6} \end{array}~\hfill (\stackrel{x_1}{2}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-8}-\stackrel{y1}{0}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{2}}}\implies \cfrac{-8}{4}\implies \cfrac{\stackrel{rise}{-2}}{\underset{run}{1}}\implies \stackrel{slope}{-2}

\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{0}=\stackrel{m}{-2}(x-\stackrel{x_1}{2}) \\\\\\ \stackrel{~\hfill y-intercept}{y=-2x\stackrel{\downarrow }{+4}}\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

6 0
4 years ago
Please answer thissss thank youuu
Georgia [21]

Answer:

  • a) f(x) = - 20x + 450
  • b) 30 pages left to read

Step-by-step explanation:

<u>Given sequence:</u>

  • 430, 410, 390, ...

The first term is 430 and the common difference is - 20.

a)

<u>Required function is:</u>

  • f(x) = 430 - 20Ix - 1) = 430 - 20x + 20 = 450 - 20x

or

  • f(x) = -20x + 450

b)

<u>Find the number of pages left after 21 days:</u>

  • f(21) = 450 - 20*21 = 450 - 420 = 30
5 0
3 years ago
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