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serious [3.7K]
3 years ago
14

What is the volume of a triangular pyramid that is 10 in tall and has a base area of 9 in

Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0
V= 1/3BH
= 1/3( 1/2x9x5)10
= 1/3(45/2) 10
= 75in ^3
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I need help finding the reference angles for these angles.
Salsk061 [2.6K]
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4 0
3 years ago
A game involves drawing a single card from a standard deck. One receives 60 cents for an ace, 30 cents for a king, and 5 cents f
professor190 [17]

Answer:

The expected game value is -1 cent

Step-by-step explanation:

Here, we want to calculate the expected value of the game

We have 4 aces and 4 kings, including 26 red cards

The number of aces is 4

Probability of drawing an ace is 4/52 = 1/13

Probability of drawing a king is also 4/52 = 1/13

There are 26 red cards

The number of red cards that are neither ace nor king

There are 2 red aces and 2 red kings

So the number of cards that are red but are not

aces nor kings are 26-2-2 = 22

The probability of selecting this is 22/52 = 11/26

So the expected value is simply the probability multiplied by the amount

Thus, we have;

(60 * 1/13) + (30 * 1/13) + (5 * 11/26)

= 60/13 + 30/13 + 55/26

= (120 + 60 + 55)/26 = 9.038 cents which is approximately 9 cents

we subtract this from the 10 cents we are playing with, thus we are left with 9-10 = -1 cent

7 0
3 years ago
Hey guys I have more questions comming soon​
gavmur [86]

Answer:

25a-40b-10 is your answer, hope this helped :)

Step-by-step explanation:

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Answer:

https:brainly.com/question/20068899

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