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2 years ago

PLEASE HELP AGAIN LOL WHAT IS 4(2x+1)-3

Mathematics

2 answers:

Harman [31]2 years ago

7 0

Answer:

8x + 1

Step-by-step explanation:

8x + 4 -3

AURORKA [14]2 years ago

4 0

Answer:

8x+1

Step-by-step explanation:

I dunno why my answer has to be at least 20 characters

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B= c= Please help asap

gladu [14]

B= 20°
and c = 160°

b is equal to the given angle, b = 20°

c is 180 - 20 = 160°

4 0

2 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

$20x^2 ( x^2 +2x - 15) = 0$

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

$x=0,-5,3$

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

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

6 0

2 years ago

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What is the answer to x-41.5=13.5

nikklg [1K]

Answer: 55

Step-by-step explanation:

just add 41.5 on 13.5 and that is x

4 0

2 years ago

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2) If the sales tax rate is 6.25% in Rio Rancho, how much would the sales tax be for a pair of shoes that cost

Marianna [84]

Answer:

Step-by-step explanation:

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3 years ago

Зn + 14 = -4 What’s the n

larisa86 [58]

so the answer is -6.

HOPE THIS WILL HELP U...

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3 years ago

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