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3 years ago

Equivalent Expression for 7[2r-3]

Mathematics

1 answer:

Anarel [89]3 years ago

6 0

Answer:

7[2r-3].

Step-by-step explanation:

7[2r-3]

= 7*2r + 7 * -3

=7[2r-3]

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Answer: 6/2(1+2)=. explain:

Tcecarenko [31]

Answer:

Step-by-step explanation:

6/2(1+2)

6/2(3)

3(3)

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3 years ago

Please help me!! How do you factor this??? 16x^5+12xy-9y^5

Aleksandr [31]

First simplifying step by step.

16x^5+12xy-9y^5

Answer is = 16x^5+12xy+−9y5

It will help you.

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3 years ago

Find the general solution of {y}''-3y=8e^{3t}+4sin(t) .

babunello [35]

Answer:

$y(x)=C_1e^{\sqrt3t}+C_2e^{-\sqrt3t}-\frac{4}{3}e^{3t}-sint$

Step-by-step explanation:

We are given that linear differential equation

$y''-3y=8e^{3t}+4 sint$

Auxillary equation

$D^2-3=0$

$D=\pm \sqrt3$

C.F= $C_1e^{\sqrt3t}+C_2e^{-\sqrt3}$

P.I= $\frac{8e^{3t}+4sin t}{D^2-3}$

P.I= $\frac{8e^{3t}}{9-3}+4\frac{sint }{-1-3}$

P.I= $e^{ax}{\phi (D+a)}$ and $P.I=\frac{sinax}{(\phi D)}$ where D square is replace by - a square

P.I= $-\frac{4}{3}e^{3t}- sint$

Hence, the general solution

G.S=C.F+P.I

$y(x)=C_1e^{\sqrt3t}+C_2e^{-\sqrt3t}-\frac{4}{3}e^{3t}-sint$

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3 years ago

What is the distance between the points (5, 13) and (-8, -9) on a coordinate plane rounded to the nearest tenth unit?

insens350 [35]

Answer:

25.6

Step-by-step explanation:

Use the distance formula.

$d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}\\d = \sqrt{(-8 - 5)^2 + (-9-13)^2}\\d = \sqrt{(-13)^2 + (-22)^2}\\d = \sqrt{169 + 484}\\d = \sqrt{653}$

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3 years ago

How do I simply these in easy simple terms please I’m very tired

Aleonysh [2.5K]

Answer:

combine like terms

Step-by-step explanation:

5 0

3 years ago