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9966 [12]
2 years ago
8

Which matrix does not have an inverse

Mathematics
1 answer:
alexira [117]2 years ago
6 0

Answer:

Doesnt Have a matrix its singular I believe, But I can really help on that

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Use the equation s = m - 7 to find the value of s when m = 10.
fgiga [73]
S=3
I believe
Because 7-10=3 and it don’t change the other way I think hahaha
7 0
3 years ago
Read 2 more answers
I need help with this question? 2(t+1) =10
ANEK [815]

Answer:

Distribute

Subtract   two from both sides of the equation

Simplify

and that's your solution

which should be t=4

Step-by-step explanation:

3 0
3 years ago
Which of the following is not a property of a chi-square distribution?
laiz [17]

Answer:

c) Is not a property (hence (d) is not either)

Step-by-step explanation:

Remember that the chi square distribution with k degrees of freedom has this formula

\chi_k^2 = \matchal{N}_1^2 +  \matchal{N}_2^2 + ... + \, \matchal{N}_{k-1}^2 +  \matchal{N}_k^2

Where N₁ , N₂m .... N_k are independent random variables with standard normal distribution. Since it is a sum of squares, then the chi square distribution cant take negative values, thus (c) is not true as property. Therefore, (d) cant be true either.

Since the chi square is a sum of squares of a symmetrical random variable, it is skewed to the right (values with big absolute value, either positive or negative, will represent a big weight for the graph that is not compensated with values near 0). This shows that (a) is true

The more degrees of freedom the chi square has, the less skewed to the right it is, up to the point of being almost symmetrical for high values of k. In fact, the Central Limit Theorem states that a chi sqare with n degrees of freedom, with n big, will have a distribution approximate to a Normal distribution, therefore, it is not very skewed for high values of n. As a conclusion, the shape of the distribution changes when the degrees of freedom increase, because the distribution is more symmetrical the higher the degrees of freedom are. Thus, (b) is true.

6 0
3 years ago
HELP I NEEF UT WITHIN 3mins! PLS HELP GOD BLESS U
Feliz [49]

Answer:

8.0%

Step-by-step explanation:

<u>.8</u> * 5,000 = 400

4 0
2 years ago
Michelle has 15.75 cups of flour in a container. She used 2.25 cups of flour to make a loaf of bread. How much flour does Michel
rusak2 [61]

Answer:

13.50

Step-by-step explanation:

15.75 - 2.25= 13.50

Check: 13.50 + 2.25 = 15.75

8 0
2 years ago
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