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Stella [2.4K]
3 years ago
11

A number divided by 5 is 22 find the number

Mathematics
2 answers:
Over [174]3 years ago
8 0
Hello!

You can multiply 5 × 22 OR you can divide.

Lets start from 90.

90 divided by 5 = 18
95 divided by 5 = 19
100 divided by 5 = 20
105 divided by 5 = 21
110 divided by 5 = 22

110 ÷ 5 = 22!

I hope this helps.
Naddika [18.5K]3 years ago
4 0

110 just multiply 5 by 22


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I'll just factor the above equation.

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80
can be:
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(x+8)(x+10)
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4 0
3 years ago
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4 0
3 years ago
Complete parts a through c for the given function.
victus00 [196]

Answer:

a. The critcal points are at

x=0,-5,3

b. Then, x = -5   is a maximum and x=3 is a minimum

c. The absolute minimum is at   x = 3  and the absolute maximum is at  x = -5.

Step-by-step explanation:

(a)

Remember that you need to find the points where

f'(x)=0

Therefore you have to solve this equation.

20x^4  + 40x^3 - 300x^2 = 0

From that equation you can factor out    20x^2  and you would get

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And from that you would have   20x^2 = 0  , so x = 0.

And you would also have  x^2 +2x-15 = 0.

You can factor that equation as    x^2 +2x -15 = (x+5)(x-3) = 0

Therefore   x=-5 ,   x=3.

So the critcal points are at

x=0,-5,3

b.  

Remember that a function has a maximum at a critical point if the second derivative at that point is negative. Since

f''(x) = 80x^3 + 120x^2 -600x\\f''(-5) = 80(-5)^3 + 120(-5)^2 -600(-5) = -4000 < 0\\\\f''(3) = 80(3)^3 + 120(3)^2 -600(3) = 1440 > 0 \\

Then, x = -5   is a maximum and x=3 is a minimum

c.

The absolute minimum is at   x = 3  and the absolute maximum is at  x = -5.

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7 0
3 years ago
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