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2 years ago

Which of the following describes the dimensions of a backyard?

Mathematics

2 answers:

emmainna [20.7K]2 years ago

8 0

Answer:

the lengths of the sides of the yard.

Step-by-step explanation:

Ad libitum [116K]2 years ago

4 0

Answer:

Step-by-step explanation:

this reason is because the sides tell how big your backyard is

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2+2= I NEED HELP 40 points if you answer

andrew11 [14]

Answer:

4 IS THE ANSWER

BRAINLEST??

8 0

3 years ago

Read 2 more answers

Consider the differential equation:

Wewaii [24]

(a) Take the Laplace transform of both sides:

$2y''(t)+ty'(t)-2y(t)=14$

$\implies 2(s^2Y(s)-sy(0)-y'(0))-(Y(s)+sY'(s))-2Y(s)=\dfrac{14}s$

where the transform of $ty'(t)$ comes from

$L[ty'(t)]=-(L[y'(t)])'=-(sY(s)-y(0))'=-Y(s)-sY'(s)$

This yields the linear ODE,

$-sY'(s)+(2s^2-3)Y(s)=\dfrac{14}s$

Divides both sides by $-s$ :

$Y'(s)+\dfrac{3-2s^2}sY(s)=-\dfrac{14}{s^2}$

Find the integrating factor:

$\displaystyle\int\frac{3-2s^2}s\,\mathrm ds=3\ln|s|-s^2+C$

Multiply both sides of the ODE by $e^{3\ln|s|-s^2}=s^3e^{-s^2}$ :

$s^3e^{-s^2}Y'(s)+(3s^2-2s^4)e^{-s^2}Y(s)=-14se^{-s^2}$

The left side condenses into the derivative of a product:

$\left(s^3e^{-s^2}Y(s)\right)'=-14se^{-s^2}$

Integrate both sides and solve for $Y(s)$ :

$s^3e^{-s^2}Y(s)=7e^{-s^2}+C$

$Y(s)=\dfrac{7+Ce^{s^2}}{s^3}$

(b) Taking the inverse transform of both sides gives

$y(t)=\dfrac{7t^2}2+C\,L^{-1}\left[\dfrac{e^{s^2}}{s^3}\right]$

I don't know whether the remaining inverse transform can be resolved, but using the principle of superposition, we know that $\frac{7t^2}2$ is one solution to the original ODE.

$y(t)=\dfrac{7t^2}2\implies y'(t)=7t\implies y''(t)=7$

Substitute these into the ODE to see everything checks out:

$2\cdot7+t\cdot7t-2\cdot\dfrac{7t^2}2=14$

5 0

3 years ago

Graph the inequality in the coordinate plane: x<-3

tensa zangetsu [6.8K]

Answer:

Graph of the inequality x< -3 as shown below in the figure.

Step-by-step explanation:

Given the inequality: x < -3

Graph of this inequality as shown below in the figure.

All the points that are lie in the shaded area satisfy the equation x < -3 or

In other words, we can say that x can take any value less than -3 .

x ≠ -3 or any number that is greater than -3.

Since there is a strict inequality i.e x < -3 , the points that lie on the line x = -3 does not satisfy the equation.

Therefore, the dotted line is marked at x = -3

8 0

2 years ago

Find the geometric mean of 2 and 8

-BARSIC- [3]

I think the answer is G=/2.(8) =(G=4)

3 0

3 years ago

Read 2 more answers

What was Zane's unit rate, in words per minute, on each test?

AfilCa [17]

Answer:

Test A: 40 words per minute

Test B: 54 words per minute

Test C: 44 words per minute

Test B has the highest unit rate

Step-by-step explanation:

Test A divide 30 by $\frac{3}{4}$ (30/0.75=40)

Test B divide 78 by $1\frac{1}{2}$ (78/1.5=52)

Test C divide 99 by $2\frac{1}{4}$ (99/2.25=44)

Hope this helps :-)

$-noorati$

4 0

2 years ago