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Katen [24]
3 years ago
8

A triangular pyramid has a base with an area of 21.8 square meters and lateral faces with bases of 7.1 meters and heights of 13

meters enter an expression that can be used to the surface area of the triangular pyramid?
Mathematics
1 answer:
Dafna11 [192]3 years ago
4 0

Answer:

  21.8 + (3/2)(7.1)(13)

Step-by-step explanation:

The surface area (SA) is the sum of the base area (B) and lateral area (LA). The lateral area is the sum of the areas of the three face triangles.

  SA = B + LA

  LA = 3((1/2)bh)) . . . . b is the base length of the triangle, and h is its height

Using appropriate substitutions, we have ...

  SA = 21.8 + (3/2)(7.1)(13)

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Answer:

5 hours and 40 minutes would be class

Step-by-step explanation:

We know that the total time is 7 hours, which in minutes would be:

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420 minutes would be class, now, we subtract the other times that are not to be in class and it would be:

420 - 30 - 50 = 340

So we could say that in class it takes 340 minutes, and if we spend hours it would be:

340/60 = 5.67 hours or also 5 hours and 40 minutes would be class.

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Step-by-step explanation:

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shutvik [7]

Using Venn probabilities, it is found that the probability that he receives an offer on at least one of the jobs is given by:

D. 0.80

<h3>What is a Venn probability?</h3>

In a Venn probability, two non-independent events are related with each other, as are their probabilities.

The "or probability" is given by:

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In this problem, we have that:

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More can be learned about Venn probabilities at brainly.com/question/25698611

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