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Vladimir [108]
2 years ago
13

NEED HELP STAT WHATS 9+10

Mathematics
2 answers:
Natali [406]2 years ago
8 0

Answer:

19

Step-by-step explanation:

9+10=19 No real way to explain it.

kicyunya [14]2 years ago
4 0
BOI ITS 19 LOL or is it 21?!
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Determine whether the set of vectors is a basis for ℛ3. Given the set of vectors , decide which of the following statements is t
schepotkina [342]

Answer:

(A) Set A is linearly independent and spans R^3. Set is a basis for R^3.

Step-by-Step Explanation

<u>Definition (Linear Independence)</u>

A set of vectors is said to be linearly independent if at least one of the vectors can be written as a linear combination of the others. The identity matrix is linearly independent.

<u>Definition (Span of a Set of Vectors)</u>

The Span of a set of vectors is the set of all linear combinations of the vectors.

<u>Definition (A Basis of a Subspace).</u>

A subset B of a vector space V is called a basis if: (1)B is linearly independent, and; (2) B is a spanning set of V.

Given the set of vectors  A= \left(\begin{array}{[c][c][c][c]}1 & 0 & 0 & 0\\ 0 & 1 & 0 & 1\\ 0 & 0 & 1 & 1\end{array} \right) , we are to decide which of the given statements is true:

In Matrix A= \left(\begin{array}{[c][c][c][c]}(1) & 0 & 0 & 0\\ 0 & (1) & 0 & 1\\ 0 & 0 & (1) & 1\end{array} \right) , the circled numbers are the pivots. There are 3 pivots in this case. By the theorem that The Row Rank=Column Rank of a Matrix, the column rank of A is 3. Thus there are 3 linearly independent columns of A and one linearly dependent column. R^3 has a dimension of 3, thus any 3 linearly independent vectors will span it. We conclude thus that the columns of A spans R^3.

Therefore Set A is linearly independent and spans R^3. Thus it is basis for R^3.

8 0
3 years ago
Solve for x.<br> (1/3) over 3 =x over 8
Ugo [173]

8/3=3x (cross multiplied to get this)

X=8/9 (divided both sides by 3)

Hope this helps :)

8 0
2 years ago
Read 2 more answers
(0.9) *(1.5 +5.8)
lisov135 [29]
(0.9)* (1.5+5.8)
First, Add the values to the right. You get (0.9) * (7.3)
Multiply 9 and 73 to get 730 -73, which is 700-43, 660 - 3, which is 657.
Divide by 100 by moving the decimal point to get 6.57 as your final answer.

Hope that helped!
7 0
3 years ago
Read 2 more answers
Factorise the following​
Irina18 [472]

Answer:

see explanation

Step-by-step explanation:

(a)

2x + 10 ← factor out 2 from each term

= 2(x + 5)

(b)

5x - 15 ← factor out 5 from each term

= 5(x - 3)

(c)

8x + 6 ← factor out 2 from each term

= 2(4x + 3)

(d)

12x - 8 ← factor out 4 from each term

= 4(3x - 2)

5 0
2 years ago
The graph represents a distribution of data.
chubhunter [2.5K]

Answer:

Mean = 50

Step-by-step explanation:

<em>Step 1: Write the mean formula</em>

Mean = sum of data/ total number of data

<em>Step 2: Calculate the sum of data</em>

35 + 40 + 45 +50 + 55 + 60 + 65 = 350

<em>Step 3: Find the total number of data</em>

Total number of data = 7

<em>Step 4: Calculate the mean</em>

Mean = sum of data/ total number of data

Mean = 350/7

Mean = 50

Therefore, the mean of this data is 50.

!!

5 0
2 years ago
Read 2 more answers
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