Why cant i get two more brainlist lol

Mathematics

1 answer:

AleksAgata [21]4 years ago

4 0

I'll make u brainlist if u answer one of my questions

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What’s the length of the hypotenuse of a right triangle if the length of one leg is 7 units and the length of the other leg is 1

MrMuchimi

Answer:

The answer is D. 15.65.

Step-by-step explanation:

7^2+14^2

49+196=245

245 (squared) is 15.65

15.65*15.65= 244.9 rounded is 245

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What happens if you have a fraction as an exponent?

riadik2000 [5.3K]

You would need to break it down and add it more

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Ex 2.11<br> 20) A curve y''=12x-24 and a stationary point at (1,4). evaluate y when x=2.

muminat

So, dy/dx=0 at the point (1, 4) - that is where x=1 and y=4.

$\int { 12x-24dx } \\ \\ =\frac { 12{ x }^{ 2 } }{ 2 } -24x+C\\ \\ =6{ x }^{ 2 }-24x+C$

$\\ \\ \therefore \quad { f }^{ ' }\left( x \right) =6{ x }^{ 2 }-24x+C$

But when x=1, f'(x)=0, therefore:

$0=6-24+C\\ \\ 0=-18+C\\ \\ \therefore \quad C=18$

$\\ \\ \therefore \quad { f }^{ ' }\left( x \right) =6{ x }^{ 2 }-24x+18$

Now:

$\int { 6{ x }^{ 2 } } -24x+18dx\\ \\ =\frac { 6{ x }^{ 3 } }{ 3 } -\frac { 24{ x }^{ 2 } }{ 2 } +18x+C$

$=2{ x }^{ 3 }-12{ x }^{ 2 }+18x+C\\ \\ \therefore \quad f\left( x \right) =2{ x }^{ 3 }-12{ x }^{ 2 }+18x+C$

Now when x=1, y=4:

$4=2-12+18+C\\ \\ 4=8+C\\ \\ C=4-8\\ \\ C=-4$

$\\ \\ \therefore \quad f\left( x \right) =2{ x }^{ 3 }-12{ x }^{ 2 }+18x-4$

Now when x=2,

$f\left( x \right) =2\cdot { 2 }^{ 3 }-12\cdot { 2 }^{ 2 }+18\cdot 2-4\\ \\ =16-48+36-4\\ \\ =0$

So when x=2, y=0.

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What can tradition teach you about cultures

cestrela7 [59]

Answer:

Traditions represent a critical piece of our culture. They help form the structure and foundation of our families and our society.

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HELP ME PLEASE<br> RIGHT ANSWERS ONLYYY PLEASE

forsale [732]