2 years ago

A teacher pushed a 27 kg desk across the floor for a distance of 5 meters in four seconds what was his power?

Mathematics

1 answer:

yan [13]2 years ago

6 0

His Power Would Be exactly 450 joules

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While completing a race, Will spent 14 minutes walking. If his ratio of time walking to jogging was 7 : 6, how many minutes did

worty [1.4K]

Answer:

12 minutes

Step-by-step explanation:

$\frac{7}{6} =\frac{14}{x}$

$7x=84$

$x=12$

So, he spent 12 minutes jogging.

8 0

3 years ago

Which of the following graphs represent a nonproportional relationship? Select all that apply.

natka813 [3]

Answer:

2nd, 4th and 5th one

Step-by-step explanation:

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So remember in order for it to be a proportional relationship it has to be a straight line and it has to go through the origin (0,0)

The 2nd, 4th and 5th ones are non proportional relationships

Why? Well because they don't go through the origin

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3 years ago

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Romashka [77]

Answer:

B is your answer

Step-by-step explanation:

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5 0

2 years ago

What is equivalent to 9 3/4?

Nata [24]

Step-by-step explanation:

We need to say that $9^{3/4}$ is equivalent to what.

We know that, (3)² = 9

So,

$9^{3/4}=((3)^2)^{3/4}\\\\=3^{3/2}$

We can write $3^{3/2} =3\times 3^{1/2}$

And $3^{1/2}=\sqrt{3}$

So,

$3\times 3^{1/2}=3\sqrt{3}$

So, $9^{3/4}$ is equivalent to $3\sqrt{3}$ .

Hence, this is the required solution.

6 0

2 years ago

A student is jogging a rate of 2/3 of a mile in 2/5 of an hour

ValentinkaMS [17]

2/5 of an hour is 12 minutes

5 0

2 years ago