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3 years ago

Find the determinant of the following matrix. [1 -2] [3 4]

Mathematics

1 answer:

Andrew [12]3 years ago

8 0

Answer:

Step-by-step explanation:

[1 -2]

[3 4]

We can obtain the determinant of the above matrix by doing the following:

Determinant =(1 × 4) – (3 × –2)

Determinant = 4 – – 6

Determinant = 4 + 6

Determinant = 10

Thus, the determinant of the above matrix is 10

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In a particular class of 27 students,17 are men.what fraction of the student in the class are men

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3 years ago

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A shipment of 50 inexpensive digital watches, including 10 that are defective, is sent to a department store. The receiving de

ddd [48]

Answer: 0.8926

Step-by-step explanation:

Given : A shipment of 50 inexpensive digital watches, including 10 that are defective.

The probability that a digital watch is defective $: p=\dfrac{10}{50}=0.2$

Sample size : n=10

Also, they reject the whole shipment if 1 or more in the sample are found defective.

Using the binomial probability formula :

$P(x)=^nC_xp^x(1-p)^{n-x}$

Let x be the random variable that represents the number of defective watches.

The probability that the shipment will be rejected :-

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Hence, the probability that the shipment will be rejected = 0.8926

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3 years ago

Find the determinant of the following matrix. [1 -2] [3 4]​

Find the determinant of the following matrix. [1 -2] [3 4]