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jok3333 [9.3K]
4 years ago
13

Look at the image below.

Mathematics
2 answers:
Setler79 [48]4 years ago
6 0

Answer:

$109,99

Step-by-step explanation:

96.16 : 4 = 24, 04

85,95 + 24,04 = $109,99

Aleksandr-060686 [28]4 years ago
3 0

Answer:

She saved 24.04 on each tire. Each tire would have cost her $109.99

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Select the exclusion that fits best with this problem.
nalin [4]

Answer:

\frac{1}{2y-2y^2}, y\neq 1

Step-by-step explanation:

observe by factorization and cancelation

\frac{y^2+y+1}{-2y(y^3-1)}=\frac{y^2+y+1}{-2y(y-1)(y^2+y+1)}\\=\frac{1}{-2y(y-1)}\\=\frac{1}{2y-y^2}

7 0
3 years ago
Consider the system of differential equations dx/dt=−2y dy/dt=−2x. . Convert this system to a second order differential equation
Musya8 [376]

Answer:

Step-by-step explanation:

we have the following differential equations

\frac{dx}{dt}=-2y\\\frac{dy}{dt}=-2x\\

by differentiating the second equation we have

\frac{d}{dt}(\frac{dy}{dt})=-2\frac{dx}{dt}\\\frac{d^{2}y}{dt^{2}}=-2\frac{dx}{dt}\\\frac{dx}{dt}=\frac{-1}{2}\frac{d^{2}y}{dt^{2}}

and we replace dx/dt in the first equation

\frac{-1}{2}\frac{d^{2}y}{dt^{2}}=-2y\\\frac{d^{2}y}{dt^{2}}-4y=0

and by using the characteristic polynomial

m^{2}+4=0\\m=\±2i

the solution is

y(t)=Acos(2t)+Bsin(2t)

and to compute x(t) we have

\frac{dx}{dt}=-2Acos(2t)-2Bsin(2t)\\\\\int dx = \int[-2Acos(2t)-2Bsin(2t)]dt\\\\x(t)=-Asin(2t)+Bcos(2t)

and if we use x(0)=4 and y(0)=3, we can calculate the constants A and B

x(0)=B=4\\y(0)=A=3

I hope this is useful for you

regards

4 0
3 years ago
Read 2 more answers
A banana has 80 calories. This is 5 calories less than one seventh of the calories in a banana split. How many calories in a ban
viva [34]
The answer is 85 times 7. Since the banana was 5 less then the split, the split is 5 more which is 85 calories but then it says it is also 1/7 of the whole split. So you simply multiply 85 and 7 because 85 was only 1/7 of the total banana split
4 0
3 years ago
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Simplify: (3x^-1)^4 (3^4x^5)^-2
AveGali [126]

Answer:

d .

Step-by-step explanation:

3 0
4 years ago
wyoming electric coop owns a steam-turbine power-generating plant. because wyoming is rich in coal deposits, the plant generates
Ivenika [448]
Go with whatever best for you
4 0
3 years ago
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