1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balu736 [363]
3 years ago
13

Solve the equation. 5x4 - 2x2 - 3 = 0

Mathematics
1 answer:
MissTica3 years ago
4 0
Answer is: 13 = 0
If you’re determining whether it’s true or false. It’s false
You might be interested in
When a linear function has a slope of 5, what is the "run" part of the slope?
alukav5142 [94]
Slope equals rise over the run
so if slope = 5 then the rise also equals 5 and the run is 1


7 0
3 years ago
Help me with this please
Pavel [41]

bro

Step-by-step explanation:

5 0
2 years ago
Consider the initial value problem y′+5y=⎧⎩⎨⎪⎪0110 if 0≤t<3 if 3≤t<5 if 5≤t<[infinity],y(0)=4. y′+5y={0 if 0≤t<311 i
rosijanka [135]

It looks like the ODE is

y'+5y=\begin{cases}0&\text{for }0\le t

with the initial condition of y(0)=4.

Rewrite the right side in terms of the unit step function,

u(t-c)=\begin{cases}1&\text{for }t\ge c\\0&\text{for }t

In this case, we have

\begin{cases}0&\text{for }0\le t

The Laplace transform of the step function is easy to compute:

\displaystyle\int_0^\infty u(t-c)e^{-st}\,\mathrm dt=\int_c^\infty e^{-st}\,\mathrm dt=\frac{e^{-cs}}s

So, taking the Laplace transform of both sides of the ODE, we get

sY(s)-y(0)+5Y(s)=\dfrac{e^{-3s}-e^{-5s}}s

Solve for Y(s):

(s+5)Y(s)-4=\dfrac{e^{-3s}-e^{-5s}}s\implies Y(s)=\dfrac{e^{-3s}-e^{-5s}}{s(s+5)}+\dfrac4{s+5}

We can split the first term into partial fractions:

\dfrac1{s(s+5)}=\dfrac as+\dfrac b{s+5}\implies1=a(s+5)+bs

If s=0, then 1=5a\implies a=\frac15.

If s=-5, then 1=-5b\implies b=-\frac15.

\implies Y(s)=\dfrac{e^{-3s}-e^{-5s}}5\left(\frac1s-\frac1{s+5}\right)+\dfrac4{s+5}

\implies Y(s)=\dfrac15\left(\dfrac{e^{-3s}}s-\dfrac{e^{-3s}}{s+5}-\dfrac{e^{-5s}}s+\dfrac{e^{-5s}}{s+5}\right)+\dfrac4{s+5}

Take the inverse transform of both sides, recalling that

Y(s)=e^{-cs}F(s)\implies y(t)=u(t-c)f(t-c)

where F(s) is the Laplace transform of the function f(t). We have

F(s)=\dfrac1s\implies f(t)=1

F(s)=\dfrac1{s+5}\implies f(t)=e^{-5t}

We then end up with

y(t)=\dfrac{u(t-3)(1-e^{-5t})-u(t-5)(1-e^{-5t})}5+5e^{-5t}

3 0
3 years ago
HELP ME I NEED YOUR HELP PLEASE
aniked [119]

Answer:

D

Step-by-step explanation:

i know im correct

6 0
3 years ago
The domain of both f(x) = x - 6 and g(x) = x + 6 is all real numbers. What is the domain of h(x) =f(x)/g(x) ?
AURORKA [14]
The domain of h(x) = f(x) /g(x) will be all real numbers without -6 because for -6 will result the denominator equal zero and hence this fraction will be undefined 
8 0
3 years ago
Read 2 more answers
Other questions:
  • Why is 5 mililon greater than 152000
    8·1 answer
  • Is 35% greater than less than or equal to 3.0​
    10·2 answers
  • Y/7 =2/x do those show direct variation ​
    15·1 answer
  • What solid figure has 5 faces, 5 vertices, 8edges?
    8·2 answers
  • A is the center of one circle, and B is the
    13·1 answer
  • A radio station gives free tickets to 10% of the people attending a concert. The radio station gives 640 people free tickets. Wh
    9·1 answer
  • M= 1/2( 3, -4) write in y= mx + b form
    6·2 answers
  • Pls answer this plssssssssssss​
    15·2 answers
  • Select all the equations for which (-6,-1) is a solution. *
    5·1 answer
  • Levi rented a movie for $3.20 and bought a package of candy for $2.55. How much money did Levi spend in total?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!