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inn [45]
3 years ago
7

Matrices A and B shown below are equal.

Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0

Answer:

-18

Step-by-step explanation:

see attachment for the figure.

If the two matrices are equal.  In this way, the amount in the upper, right-hand corner of A (which is - 18) is equivalent to the amount in the upper, right-hand corner of B, which is b₁₂

Therefore, the first answer choice (-18) is the correct one.

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in a final exam you have four multliple choice questions left to do. each questions has five suggested answers and only one of t
kompoz [17]

Answer:

The probability that you get zero questions correct is 0.4096

The probability that you get one questions correct is 0.4096

The probability that you get three questions correct is 0.0256

Step-by-step explanation:

These probability can be describe with a Binomial Distribution. These distribution can be used when we have n identical and independent situations in which there is a probability p or probability of success and a probability q or probability of fail. Additionally q is equal to 1 - p. The probability of x for a situation in which we can apply binomial distribution is:

P( x,n,p) = n Cx * p^{x } * q^ {n-x}

Where x is the variable that says the number of success in the n situations

And nCx is calculate as:

nC x = \frac{ n!}{ x! (n-x)! }

From the question we can identify that:

  • n is equal to 4 multiple choice question
  • p is 1/5 or 0.2, the probability of get one question correct
  • q is 4/5 or 0.8, the probability of get one question incorrect

Then the probability of get zero questions correct of 4 questions is:

P( 0, 4, 0.2) = 4 C0 * p^{0 } * q^ {4-0}= 0.4096

The probability of get one question correct of 4 questions is:

P( 1, 4, 0.2) = 4 C1 * p^{1 } * q^ {4-1}= 0.4096

The probability of get three questions correct of 4 questions is:

P( 3, 4, 0.2) = 4 C3 * p^{3 } * q^ {4-3}= 0.0256

8 0
3 years ago
A firm has a debt to asset ratio of 75%, $264,000 in debt, and net income of $49,280. calculate return on equity
svlad2 [7]
Asset = 264,000 / 0.75 = $352,000
Shareholders equity = $352,000 - $264,000 = 88,000

Return on equity = 49,280 / 88,000 x 100% = 56%
3 0
3 years ago
If the volume of the pyramid is 192 yd³; and the area of the base is 64 yd², what is the height measured in yards?
Otrada [13]

Answer:

177

Step-by-step explanation:

4 0
2 years ago
Use the graph to answer the question what is the average rate from change from x=3 to x=11
expeople1 [14]

Answer:

-1/8

Step-by-step explanation:

7 0
3 years ago
Please help me with all thank you
zhenek [66]

Answer:

345x32=11040

546/7=78

789x24=18936

Step-by-step explanation:

7 0
3 years ago
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