3 years ago

A piece of ribbon is cut into three pieces that

Mathematics

1 answer:

labwork [276]3 years ago

5 0

Answer:

3 dollar

Step-by-step explanation:

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Pls help me solve this question, also include step by step calculation ya. Thks

sp2606 [1]

$\displaystyle\\Answer:\ x=\sqrt{2}\ \ \ \ \ x=-\sqrt{2}\ \ \ \ \ x=\frac{ln5}{2}$

Step-by-step explanation:

$5x^2-x^2e^{2x}+2e^{2x}=10$

$Let:\ x^2=t \ \ \ \ \ e^{2x}=v\\Hence,\\5t-tv+2v^2=10\\5t-tv+2v^2-10=10-10\\5t-tv-10+2v^2=0\\t(5-v)-2(5-v)=0\\(5-v)(t-2)=0\\5-v=0\\5-v+v=0+v\\5=v\\5=e^{2x}$

Prologarithmize both parts of the equation:

$ln5=lne^{2x}\\ln5=2x*lne\\ln5=2x*1\\ln5=2x\\$

Divide both parts of the equation by 2:

$\displaystyle\\x=\frac{ln5}{2}$

$t-2=0\\t-2+2=0+2\\t=2\\x^2=2\\x=\sqrt{2} \\x=-\sqrt{2}$

6 0

1 year ago

Please please please please help

Sidana [21]

Answer:

I guess its the first one

Step-by-step explanation:

I think they're asking which one doesn't look like a regular shape. Tbh I have no idea

7 0

3 years ago

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Henlo! how is everyone doing? OK 15 points name all the colors in the rainbow!

GuDViN [60]

Answer:

red

orange

yellow

green

blue

purple

Step-by-step explanation:

thanks for the points

4 0

2 years ago

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there are 93 calories in a small cupcake. how many calories are there in a half dozen small cupcakes?

zmey [24]

Answer:

Step-by-step explanation:

6 0

2 years ago

Pls answer asap I'll mark u brainliest

ryzh [129]

Answer:

a)29

b)70

Step-by-step explanation:

The sum of the interior angles in a triangle is 180.

a)95+56+a=180 b)40+2b=180

151+a=180 2b=180-40

a=180-151 2b=140 /2

a=29 b=70

8 0

3 years ago

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