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lesya [120]
3 years ago
7

50 points, brainIiest, 5 stars, and a thanks. Please help me! :(

Mathematics
2 answers:
Dmitrij [34]3 years ago
8 0

Answer:

The constant rate of proportionality is 2.5.

Step-by-step explanation:

The formula for constant rate of proportionality is y divided by x.

So, we would then solve the quotient of each y and x.

The first one would be 10 divided by 4, which is 2.5.

The second one would be 12.5 divided by 5, which is also 2.5.

The third and final one would be 25 divided by 10, which is also 2.5.

Hence, the constant rate of proportionality would be 2.5.

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>
-Dominant- [34]3 years ago
3 0

Answer:

2.5

Step-by-step explanation:

Hope this helps :)

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Assuming that the ship travels at a constant speed, what is its speed?
Ilia_Sergeevich [38]

Answer: S= d/p

Step-by-step explanation: Take the distance (d) divided by time (t) and you should have your answer

4 0
2 years ago
A square matrix A is said to be idempotent iff A2 = A. (i) Show that if A is idempotent, then so is I − A. (ii) Show that if A i
muminat

Answer:

Step-by-step explanation:

Given that A is a square matrix and A is idempotent

A^2 = A

Consider I-A

i) (I-A)^2 = (I-A).(I-A)\\= I^2 -2A.I+A^2\\= I-2A+A\\=I-A

It follows that I-A is also idempotent

ii) Consider the matrix 2A-I

(2A-I).(2A-I)=\\4A^2-4AI+I^2\\= 4A-4A+I\\=I

So it follows that 2A-I matrix is its own inverse.

7 0
3 years ago
A group of students is gathering plants and animals for the class terrarium.
Mamont248 [21]

Answer:

10

Step-by-step explanation:

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3 0
3 years ago
A graph titled velocity versus time has horizontal axis time (seconds) and vertical axis velocity (meters per second). A line ha
AnnyKZ [126]

Acceleration is the change in velocity with respect to the time. The acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.

<h3>Given information-</h3>

Segment A runs from 0 seconds 0 meters per second to 1 seconds 30 meters per second.

Segment B runs to 3 seconds 30 meters per second.

Segment C runs to 6 seconds 10 meters per second.

Segment D runs to 7 seconds 10 meters per second.

Segment E runs to 10 seconds 20 meters per second.

<h3>Acceleration</h3>

Acceleration is the change in velocity with respect to the time. Acceleration of a vector quantity which means it has both magnitude and the direction. It can be given as,

a=\dfrac{\Delta v}{\Delta t}

Here t denotes the time and v denotes the velocity of the body.

Acceleration at segment C,

a_c=\dfrac{10-40}{6-5}

a_c=-30

Thus the acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.

Learn more about the acceleration here;

brainly.com/question/2437624

4 0
3 years ago
Read 2 more answers
David rode 2.5 kilometers on his bike. Jessie rode 2,050 meters on her bike. Who rode farther and by how many meters?
weqwewe [10]
2.5 kilometres is 2500 meters as 1km is 1000m

2500-2050 = 450m

as david is the one that rode 2.5 kilometres he rode further by 450 meters
8 0
3 years ago
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