3 years ago

Which expression represents 3 times the sum of 7 and m ?

Mathematics

1 answer:

inysia [295]3 years ago

3 0

Answer:

3 (7+m)

Step-by-step explanation:

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Calculate the Laplace transforms of the following from the definition. 1. y = t^2. y = t^3

Likurg_2 [28]

Answer:

1) $L(y)=\frac{2}{s^{3}}$

2) $L(y)=\frac{6}{s^{4}}$

Step-by-step explanation:

To find : Calculate the Laplace transforms of the following from the definition ?

Solution :

We know that,

Laplace transforms of $t^n$ is given by,

$L(t^n)=\frac{n!}{s^{n+1}}$

1) $y=t^2$

Laplace of y,

$L(y)=L(t^2)$ here n=2

$L(y)=\frac{2!}{s^{2+1}}$

$L(y)=\frac{2}{s^{3}}$

2) $y=t^3$

Laplace of y,

$L(y)=L(t^3)$ here n=3

$L(y)=\frac{3!}{s^{3+1}}$

$L(y)=\frac{3\times 2}{s^{4}}$

$L(y)=\frac{6}{s^{4}}$

5 0

3 years ago

If people who bought 4 souvenir spent $2 for each one,how much did all the people who bought 4 souvenir spend in all ?

puteri [66]

I believe it is $0.50.

$2 divided by 4 equals $0.50.

8 0

3 years ago

If F(x) = 7x - 6, which of the following is the inverse of F(x)?

Alex777 [14]

Answer:

$f^{-1} (x)=\frac{x+6}{7}$

Step-by-step explanation:

To find the inverse of a function, we must substitute in y for f(x), swap the locations of y and x, and then solve for y

$y=7x-6\\\\x=7y-6\\\\x+6=7y\\\\y=\frac{x+6}{7} \\\\f^{-1} (x)=\frac{x+6}{7}$

4 0

3 years ago

Does this graph represent a function? Why or why not?

jek_recluse [69]

No, because it is not a straight line

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3 years ago

Read 2 more answers

A car drives with an average velocity of 20.1 m/s . After some time, it has traveled 34.2 km. How long has the car been travelin

exis [7]

Answer:

time = distance / velocity

time = 34,200 meters / 20.1 meters per second

time = 1,701.4925373134 seconds

time = 28.36 minutes

Step-by-step explanation:

3 0

3 years ago