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3 years ago

⚠️HURRY WHORTH 30 points ⚠️Charlie bikes 9 miles everyday which equation models the situation

Mathematics

2 answers:

astraxan [27]3 years ago

5 0

Answer:

C.9d=m

Step-by-step explanation:

Dima020 [189]3 years ago

4 0

Answer:

The answer is C im sure i just took the thest and got 100% good luck!!!

Step-by-step explanation:

I just guess n got it right now i wanna help yhu out have a bless day!

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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

Wheel world sold 875 cars last year if the sales this year are 120% of sales last year how many cars will they sell this year

inn [45]

okay so first you wanna turn that 120% into a decimal and the decimal form of that would be 1.2 or 1.20

Secondly you want to multiply 875 by the 1.2

875*1.2 = 1050

So if they sell 120% of last years sales they will sell 1050 cars this year.

Hope this helped :)

3 0

3 years ago

Solving Exponential and Logarithmic Equation In exercise,solve for x or t.See example 5 and 6.

nalin [4]

Answer:x=15

Step-by-step explanation:

You should collect the like terms first

21-6=x

Therefore

X=15

6 0

3 years ago

Solve the following equation. Express your answer as an integer, simplified fraction, or decimal rounded to two decimal places.

Andrej [43]

The width of a rectangle is going to be equal on both sides, as they’re parallel in a rectangular shape. We know the width is 86 yards, and we have two lots of these, therefore 86 multiplied by 2 is equal to 172 yards.

We still have two more sides, but once again, because this is a rectangle, those sides must be equal. Therefore if we subtract the 172 yards we know from the total perimeter of 438 yards we will end up with an answer of 266 yards. This figure is divided by two because we have a length on either side of the perimeter. Therefore the answer is 133 yards.

Hope this helps!

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3 years ago

Which of the following cannot be simplified?

saw5 [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

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