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marissa [1.9K]
3 years ago
11

How can you check to see if two ratios form a proportion? Explain the method you used to find the answer to the previous problem

.
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
6 0

Answer:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Step-by-step explanation:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Sedaia [141]3 years ago
3 0

Answer:

Write a proportion using the ratios.

Step-by-step explanation:

Find the cross products. If the cross products are equal, then the ratios form a proportion.

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Step-by-step explanation:

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sergeinik [125]

Answer:

∠ 4 = 130°

Step-by-step explanation:

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2 years ago
What degree of rotation is represented on this matrix
Korvikt [17]

Answer:

Option B is correct

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Step-by-step explanation:

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To find the degree of rotation using a standard rotation matrix i.e,

R = \begin{bmatrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{bmatrix}

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Answer:

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Step-by-step explanation:

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