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3 years ago

15

a bag of chocolate mix that weighed 1/9 of a kilogram could make enough brownies to feed 1/8 of the students at school. how many

bags would be needed to feed all of the students.

1 answer:

Julli [10]3 years ago

6 0

You would need only 1 bag to feed all the students.

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The radius of a cylinder is 3 yards, and the total surface area is 320 square yards. Which of the following is the closest to th

Olegator [25]

The answer is D I think

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2 years ago

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

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2 years ago

Which is more? 1 gallon or 8 liters?

stiks02 [169]

Answer:

8 litres is roughly equivalent to 2 gallons, so 8 litres would be a lot more than 1 gallon. Hope this helps! :)

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2 years ago

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The ratio of 6:5 can be expressed as

Helen [10]

Answer:

the ratio of 6:5 can be expressed as 6/5

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2 years ago

Is it first or second? Please help me.

Colt1911 [192]

This is in first person.

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2 years ago

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