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3 years ago

Image 30 points) math

Mathematics

2 answers:

Rainbow [258]3 years ago

8 0

Answer:

$\pi =\frac{C}{d}$

Step-by-step explanation:

$C=\pi d$

$\pi =\frac{C}{d}$

muminat3 years ago

8 0

Answer:

I'm not 100%sure but i'm think that it is c

Step-by-step explanation:

Hope this helps! May have gotten it wrong really sorry if I did

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The admission fee at the Smithsonian Air & Space

mel-nik [20]

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3 years ago

How do I find the reciprocal of the fractions 2/3 and 8/3

Mice21 [21]

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3 years ago

Read 2 more answers

Use Laplace transform methods to solve the differential equation: The initial conditions are f(0) = 0 and <img src="https://tex.

Llana [10]

Answer:

Step-by-step explanation:

$\frac{d^2 y}{dt^2} +12\frac{dy}{dt} +32y = 10e^{-2t}$ where f(x) is replaced by y

Take Laplace on both sides

$s^2 Y -s(0)-0 +12s Y-0+32Y = \frac{10}{s+2} \\Y(s^2+12s+32) = \frac{10}{s+2}\\Y = \frac{10}{(s+2)(s+4)(s+8)}$

We can resolve into partial fraction to get Y = L(y)

Let this equals

$\frac{A}{s+2} +\frac{B}{s+4} +\frac{C}{s+8} \\10 = A(s+4)(s+8) + B(s+2)(s+8) +Cs+4)(s+2) \\$

Solving we get

s=-9

24C = 10 or C =5/12

s=-2: A=10/12=5/6

s=-4: B = -5/4

Taking inverse Laplace

$y(t) = \frac{-5e^{-4t} }{4} + \frac{5e^{-8t} }{12} +\frac{-5e^{-2t} }{6}$

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3 years ago

Out of 80 workers surveyed at a company, 11 walk to work A. What is the experimental probability that a randomly selected worker

s344n2d4d5 [400]

Answer:

Below.

Step-by-step explanation:

A. Required probability = 11/80.

B. 3700 * 11/80 = 508.75 so the predicted number would be 509.

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3 years ago

Solve the equation.<br> -6p=48

malfutka [58]

Answer:

p=-8

Step-by-step explanation:

A negative multiplied by a negative is a positive.

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3 years ago

Image 30 points) math ​

Image 30 points) math