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3 years ago

Evaluate the determinant for the following matrix: 144 522 155 A. 125 B. 200 C. 0 D. –96

Mathematics

1 answer:

babymother [125]3 years ago

4 0

Edit: Answer is 0. If you are still confused, let me know

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Answer:

the answer is n=4

Step-by-step explanation:

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PolarNik [594]

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Flura [38]

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A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground. How high is the top o

DochEvi [55]

Answer:

The height of tree house is 70.71 feet

Step-by-step explanation:

We are given that A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground

Refer the attached figure

Length of rope AC = Hypotenuse =100 feet

The top of a tree house to the ground forms a 45∘ angle of elevation from the ground = $\angle ACB = 45^{\circ}$

We are supposed to find the height of tree house i.e.AB = Perpendicular

So, Using trigonometric ratio

$Sin \theta = \frac{perpendicular}{Hypotenuse}\\Sin 45= \frac{AB}{AC}\\\frac{1}{\sqrt{2}}=\frac{AB}{100}\\100 \times \frac{1}{\sqrt{2}}=AB\\70.71=AB$

Hence The height of tree house is 70.71 feet

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3 years ago

Describe how you would find 24+ 36 using mental math

FinnZ [79.3K]

Answer:

First add 6 and 4 together to get 10 now add 2 and 3 and 1 together which gets you 6 and add the zero from the 10 and you get 60

Step-by-step explanation:

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3 years ago