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3 years ago

12

there are 30 students on the debate team and 20 students on the math team. ten students are on both the math team and debate tea

m. what is the total number of students on either team?

2 answers:

alexandr1967 [171]3 years ago

8 0

The answer would be 40 because 30+20-10=40

Rufina [12.5K]3 years ago

8 0

Answer:

The solution is 40.

n(D U M) = n(D) + n(M) - n(D ∩ M)

= 30 + 20 - 10

= 40 students

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erastova [34]

Problem: You do not have an attached picture. Though, I can help you out with this question.

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weeeeeb [17]

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How far apart in feet are Marcus and Joel. Please round your answer to the nearest tenth of a foot

Pavel [41]

Answer:

The distance between Marcus and Joel is approximately 127.3 feet.

Step-by-step explanation:

The distances between Jean to Joel, Jean to Marcus and Marcus to Joel form a right triangle where the distance from Marcus to Joel is the hypothenuse. We can measure the distance from Jean to Marcus and Jean to Joel by using the grid provided, since they're along the same axis. This is shown below:

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We can apply the pythagora's theorem to find the distance between Marcus and Joel.

d(Marcus,Joel)² = d(Jean,Marcus)² + d(Jean,Joel)²

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3 years ago

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11Alexandr11 [23.1K]

Answer:

(x, y ) → (- y, - x )

Step-by-step explanation:

Consider the coordinates of corresponding vertices of the 2 triangles, that is

A(1, 7 ) → D(- 7, - 1 )

Note the coordinates of D are the negative reversals of A

Thus (x, y ) → (- y, - x )

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3 years ago