4 years ago

How to work it and solve the problem

1 answer:

jeka944 years ago

8 0

It's quite difficult, almost impossible to write all steps to solve a 3x3 matrix.

However, I will give you te answer that is determinant (Matrix)=54

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20/8 as a mixed number the simplest form

REY [17]

Well, that's not that difficult - 20/8 as a mixed number is 2 4/8. We can simplify it to 2 2/4, which can be furthered simplified to 2 1/2.

I hope it will help you :)

3 0

3 years ago

Read 2 more answers

1) Arjun baked 15 cookies with 3 scoops of flour. With 5 scoops of flour, how many cookies

topjm [15]

Answer:

Step-by-step explanation:

15 divided by 3 times 5

6 0

4 years ago

What does not belong 15/18, 5/6, 60/72, 145/180

steposvetlana [31]

Answer:

145/180

Step-by-step explanation:

Divide them and you will see they all get the same answer except 145/180

6 0

4 years ago

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Simplify. 10 / 7 k + 11 / 7 - 2 k + 2/7 + 2/7 k -6

Nikolay [14]

As written, this is

$\dfrac{10}{7}k+\dfrac{11}{7}-2k+\dfrac{2}{7}+\dfrac{2}{7}k-6=\left(\dfrac{10}{7}-2+\dfrac{2}{7}\right)k+\left(\dfrac{11}{7}+\dfrac{2}{7}-6\right)\\\\=\dfrac{10-14+2}{7}k+\dfrac{11+2-42}{7}\\\\=-\dfrac{2}{7}k-\dfrac{29}{7}$

6 0

3 years ago

Given the following probability distribution, what is the expected value of the random variable X? X P(X) 100 .10 150 .20 200 .3

Mekhanik [1.2K]

Answer:

d) 205

Step-by-step explanation:

Step(i):-

x : 100 150 200 250 300

p(X=x) : 0.10 0.20 0.30 0.30 0.10

Step(ii):-

Let 'X' be the discrete random variable

Expected value of the random variable

E(X) = ∑ x P(X=x)

= 100 X 0.10 + 150 X 0.20 + 200 X 0.30 +250 X 0.30 + 300 X 0.10

= 205

Final answer:-

The expected value E(X) = 205

5 0

4 years ago