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zhannawk [14.2K]
3 years ago
12

Which algebraic expression means “four less than three times a number”?

Mathematics
1 answer:
Monica [59]3 years ago
5 0

It’s 3n-4

I might be right or wrong

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The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are sh
Dennis_Churaev [7]
The difference in the mean rainfall is given by 19.7 - 19.3 = 0.5

The difference in the <span>mean rainfall is approximately 0.5/4.6 = 0.087 = 8.7 percent of the mean absolute deviation for last week and is 0.5/5.2 = 0.077 = 7.7 percent of the mean absolute deviation for this week.

Therefore, the difference in the </span><span>mean rainfall is approximately what percent of the mean absolute deviation 8% of the mean absolute deviation of the data sets.</span>
4 0
3 years ago
Read 2 more answers
DISTRIBUTIVE PROPERTY
11Alexandr11 [23.1K]

Answer:

1. C. 4x + 40

2. a. - 2a + 10

3. d. 13x - 45

4. 2c-7d

5. b. -2z - 12

Step-by-step explanation:

1.  4(x+10)  = 4x+4*10 = 4x+40

C


2.  -2(a - 5) = -2*a -2*-5 = -2a+10

A


3.  10x + 3 (x-15)

10x + 3x -3*15

10x+3x-45

13x-45

D


4. -5(c+d) + 7c - 2d

-5c-5d + 7c-2d

-5c+7c -5d -2d

2c-7d


5.  2(2z + 4) - 2 (3z + 10)

2*2z +2*4 -2 *3z -2*10

4z+8 -6z-20

4z-6z+8-20

-2z-12

B

8 0
4 years ago
Another way to write 300 + 70 + 5/10 + 8/100
Alja [10]

Answer:

A. 370.58

Step-by-step explanation:

Hope that helps

8 0
3 years ago
Type the correct answer in each box. Use sigma notation to represent the following series for the first 10 terms. 3 + (-6) + 12
klemol [59]

Answer:

Kindly check attached picture

Step-by-step explanation:

Given the following :

First term (a) = 3

Second term = - 6

third term = 12

Fourth term = - 24

We can obtain the common ratio of the series using the relation :

(2nd term/ 1st term) = (3rd term/2nd term) = (4th term/ 3rd term) =....

(-6/3) = (12/-6) = (-24/12)

-2 = - 2 = - 2

Further explanation can be found in attached picture

7 0
3 years ago
A force F=-2i+j+k acts at point A(1,5,1) on a solid which is free to turn about a fixed point Q(-1,2,1). Find the torque exerted
DerKrebs [107]

The torque exerted by the force on the body is \vec \tau = 3\,\hat{i}-2\,\hat{j} + 8\,\hat{k}.

Vectorially speaking, the torque exerted (\vec \tau) by the force on the body (\vec F) is resulted from this expression:

\vec \tau = \vec r_{QA} \times \vec F (1)

Where:

  • \vec r_{QA} - Vector distance between points A and Q.
  • \vec F - Vector force exerted at point A.

If we know that \vec r_{QA} = (2, 3, 0) and \vec F = (-2, 1, 1), then the torque is:

\vec \tau = \left|\begin{array}{ccc}\hat{i}&\hat{j}&\hat{k}\\2&3&0\\-2&1&1\end{array}\right|

\vec \tau = (3, -2, 8)

The torque exerted by the force on the body is \vec \tau = 3\,\hat{i}-2\,\hat{j} + 8\,\hat{k}.

To learn more on torque, we kindly invite to check this verified question: brainly.com/question/3388202

8 0
2 years ago
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