3 years ago

Using the method of variation of parameters find the general solution to the following ODE: 41" – 4ty' + 3y = 813

Mathematics

1 answer:

Keith_Richards [23]3 years ago

4 0

Answer:

solution y=271 or rewrite y-271=0

Step-by-step explanation:

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Which pair of fractions is not equivalent fractions?<br><br> 7/8 5/6 1/9 2/18 3/16 9/48 6/15 4/10

photoshop1234 [79]

Answer:

7/8 and 5/6 are not equivalent

Step-by-step explanation:

Fractions are equivalent when you put them into your calculator and it gives the same number.

7 ÷ 8 = 0.875

5 ÷ 6 = 0.8333...

Since 0.875 ≠ 0.8333, 7/8 and 5/6 are not equivalent.

If you test for the other pairs, they will have the same decimal.

1/9 = 2/18 = 0.111...

3/16 = 9/48 = 0.1875

6/15 = 4/10 = 0.4

7 0

3 years ago

A = 1 4 π d 2 what is the formula to calculate the diameter of a circle

Anestetic [448]

Answer:

$D=2\sqrt{\frac{A}{\pi}}$

Step-by-step explanation:

we know that

The area of the circle is equal to

$A=\frac{1}{4}\pi D^{2}$

where

D is the diameter of the circle

Solve for D

That means-----> Isolate the variable D

Multiply both sides by 4 to remove the fraction

$4A=\pi D^{2}$

Divide both sides by π

$\frac{4A}{\pi}=D^2$

square root both sides

$\sqrt{\frac{4A}{\pi}}=D$

Rewrite

$D=\sqrt{\frac{4A}{\pi}}$

Simplify

$D=2\sqrt{\frac{A}{\pi}}$

3 0

3 years ago

Umm whats y2 when y is -9 and whats z2 when z is 0.7 im not that smart so ill be asking alot

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

y = - 9

y^2 = (-9)^2 = 81

AND

z = 0.7

z^2 = (0.7)^2 = 0.49

Hope it helped

6 0

3 years ago

What number is 1/10 the vaule of 237

Nady [450]

23.7 is 1/10 the value of 237

3 0

3 years ago

180 euros to the uk exchange rate was €1.2 to £1 how much did he get in £ sterling

Nataliya [291]

Here you can use proportion:

The ratio betwen €1.2 to £1

is the same as the ratio between €180 to £x

Mathematically this means that

$\dfrac{1.2}{180} =\dfrac{1}{x}$ .

Now

$1.2\cdot x=180\cdot 1\\\\ x=\dfrac{180}{1.2} \\ \\x=150$

Answer: €180 is £150

6 0

4 years ago

Read 2 more answers