4 years ago

Please Help!

Mathematics

2 answers:

Mice21 [21]4 years ago

6 0

The answer is 14.13 I think cause I had that answer before and I put 14.13 and it was right so it's 14.13 :)

yaroslaw [1]4 years ago

5 0

Answer:The answer is 21.2. I just took the test. I hope this helps!

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Solve: 2x-3=6 I am stuck

Leni [432]

$\displaystyle \\ 
2x - 3 = 6 \\ \\ 
2x = 6+3 \\ \\ 
2x = 9 \\ \\ 
x = \boxed{\frac{9}{2}} = \boxed{4\frac{1}{2}} = \boxed{4,5}$

6 0

3 years ago

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please help! A cheetah travels at a rate of 90 feet per second.The distance d traveled by the cheetah is a function of seconds t

Juliette [100K]

<h2><em>The equation would be d=90t because the input is 25 for t and multiply to get 2250 feet per second</em>. </h2>

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4 years ago

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A potential energy function is given by U = A x3 + B x2 − C x + D . For positive parameters A, B, C, D this potential has two eq

Ivenika [448]

Answer:

7.8655

Step-by-step explanation:

Given the functionl

$U=Ax^3+Bx^2-cx+D$

Where,

$A=1.45J/m^3\\B=2.85J/m^2\\c= 1.7J/m\\D=0.6J$

We have, replacing,

$U=1.45x^3+2.85x^2-1.7x+0.6$

We need to derivate and verify for stable equilibrum that,

$\frac{d^2 U}{dx^2}>0$

Then,

$U'(x) = 4.32x^2+5.7x-1.7$

Roots in,

$x_1=-1.57008\\x_2=0.250636$

We obtain U"(x), then we have

$\frac{d^2U}{dx}=8.64x+5.7$

For $x=-1.57, U"(x)=-7.86549$ Unestable

For $x=0.250636 U"(x)=7.8655>0$ Stable

7 0

3 years ago

This helped me so much thank you!!!!!!

lukranit [14]

Answer:

Your profile picture I love it

4 0

3 years ago

HELP PLEASE!!!

ollegr [7]

-33.33+50= 16.67
it is the original amount plus 16.67%... so it is greater that the original value

6 0

4 years ago

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