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Citrus2011 [14]
3 years ago
8

PROMISE BRAINLIEST PLZZ ANSWER IF U KNOW THIS I PROMISE IT EASY I JUST DON'T KNOW PLZZ ASAP

Mathematics
1 answer:
nasty-shy [4]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Try to follow the graph for the amount of time specified and see what speed it gets you.

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Solve using test intervals |x 1|> or equal to 4
insens350 [35]
<span><span>Solve <span>x5 + 3x4 – 23x3 – 51x2 + 94x + 120 </span></span>><span><span> 0</span>. </span></span><span>First, I factor to find the zeroes:<span><span>x5 + 3x4 – 23x3 – 51x2 + 94x + 120</span><span>= (x + 5)(x + 3)(x + 1)(x – 2)(x – 4) = 0</span></span><span>...so </span><span>x = –5, –3, –1, 2,</span><span> and </span>4<span> are the zeroes of this polynomial. (Review how to </span>solve polynomials, if you're not sure how to get this solution.)<span>To solve by the Test-Point Method, I would pick a sample point in each interval, the intervals being </span>(negative infinity, –5)<span>, </span>(–5, –3)<span>, </span>(–3, –1)<span>, </span>(–1, 2)<span>, </span>(2, 4)<span>, and </span>(4, positive infinity). As you can see, if your polynomial or rational function has many factors, the Test-Point Method can become quite time-consuming.<span>To solve by the Factor Method, I would solve each factor for its positivity: </span><span>x + 5 > 0</span><span> for </span><span>x > –5</span>;<span>x + 3 > 0</span><span> for </span><span>x > –3</span><span>; </span><span>x + 1 > 0</span><span> for </span><span>x > –1</span><span>; </span><span>x – 2 > 0</span><span> for </span><span>x > 2</span><span>; and </span><span>x – 4 > 0</span><span> for </span><span>x > 4</span>. Then I draw the grid:...and fill it in:...and solve:<span>Then the solution (remembering to include the endpoints, because this is an "or equal to" inequality) is the set of </span>x-values in the intervals<span> [–5, –3]<span>, </span>[–1, 2]<span>, and </span>[4, positive infinity]</span>. </span>

As you can see, if your polynomial or rational function has many factors, the Factor Method can be much faster.

<span>
</span>
4 0
3 years ago
The value of 21b - 32 + 7 b - 20 b is​
Aleonysh [2.5K]
8b - 32

Hope it’s right
Best luck with your studying
6 0
3 years ago
Read 2 more answers
Given the statement, LEI=BNZ and the diagrams shown, determine the value of x.
WARRIOR [948]

Answer:

x = 20

Step-by-step explanation:

Given the triangles are congruent then corresponding angles are congruent, so

∠ N = ∠ E

To calculate ∠ E subtract the sum of the 2 given angles from 180

∠ E = 180 - (x - 5 + 4x - 10)

     = 180 - (5x - 15)

Equate ∠ N and ∠ E

5x - 5 = 180 - 5x + 15 ( add 5x to both sides )

10x - 5 = 195 ( add 5 to both sides )

10x = 200 ( divide both sides by 10 )

x = 20

5 0
3 years ago
To the people who need points, here you go. Just put a random answer. I know that someone is going to be ungrateful and just ste
denis-greek [22]

Answer:

Thanks your amazing i hope you have a great day.

Step-by-step explanation:

3 0
3 years ago
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Solve the equation below:<br> 11(x+10)=132
storchak [24]

Answer:

x = 2

Step-by-step explanation:

6 0
3 years ago
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