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3 years ago

What is the value ??????? Help!

Mathematics

2 answers:

larisa86 [58]3 years ago

6 0

Answer:

please give brainiest

thank you

Iteru [2.4K]3 years ago

4 0

Answer:

Its 16 (-1/2)^-4=16 then

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Find the inverse Laplace transform f(t) of the function F(s). Write uc for the Heaviside function that turns on at c, not uc(t).

zzz [600]

Answer:

F(t) $=\frac{-1}{2}e^{7(t-7)}+\frac{1}{2}e^{-7(t-7)}$

Step-by-step explanation:

We have given $F(S)=\frac{7e^{-7s}}{s^2-49}$

Now $F(S)=e^{-7s}G(s)$

Here $G(S)=\frac{7}{S^2-49}$

Now first find the Laplace inverse of G(S)

Using partial fraction

$\frac{7}{(s+7)(s-7)}=\frac{A}{(S+7)}+\frac{B}{S-7}$

$7=A(S-7)+B(S+7)$

On comparing the coefficient

$A=\frac{1}{2}$ and $B=\frac{-1}{2}$

On putting the value of A and B

$G(S)=\frac{-1}{2(S+7)}+\frac{1}{2(S+7)}$

Taking inverse Laplace

$G(t)=\frac{-1}{2}e^{7t}+\frac{1}{2}e^{-7t}$

Now in G(s) there is onether term $e^{-7s}$

So F(t) $=\frac{-1}{2}e^{7(t-7)}+\frac{1}{2}e^{-7(t-7)}$

6 0

3 years ago

Simplify. 8 · 3 · x 13x 24x 22x 48x

Elina [12.6K]

$8\cdot3\cdot x=(8\cdot3)x=24x$

7 0

3 years ago

I don't understand it at alll someone please give me the answer

goldenfox [79]

I hope this helps you

7 0

3 years ago

Read 2 more answers

Select the equations that are correct.mark all that apply.

allsm [11]

Answer:

17,550÷65=270 Correct

11,196÷12=933 Correct

11,712÷96=122 Correct

Step-by-step explanation:

17,550÷65=270 Correct

11,196÷12=933 Correct

29,365÷35=677 Incorrect

11,712÷96=122 Correct

4 0

3 years ago

11. Find the coordinates of the point located six units behind the yz- plane, seven units to the right of the xz - plane, and ei

Alexxandr [17]

Answer: I think

Step-by-step explanation:Let the coordinate of the point be (x,y,z). Since the point is located 3 units behind the YZ− plane, 4 units to the right of XZ− plane and 5 units above the XY−plane ,x=−3,y=4 and z=5 Hence, coordinates of the required points are (−3,4,5)

8 0

1 year ago