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lesya [120]
3 years ago
5

A triangular pyramid has a height of 9 meters. The area of the base of the pyramid is 12

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0

See picture for answer and solution steps.

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If two of these shapes are randomly chosen, one after the other without replacement, what is the probability that the first will
aleksandrvk [35]

Answer:

P(T\ n\ S) = \frac{1}{14}

Step-by-step explanation:

*Missing Part of the Question*

4 stars

5 triangles

3 circles

3 squares

Required

Determine the probability of triangle being first then square being second

Total = 4 + 5 + 3 + 3

Total = 15

Represent the triangle with T and square with S

So, we're solving for P(T n S)

P(T\ n\ S) = P(T) * P(S)

Solving for P(T)

P(T) = \frac{n(T)}{Total}

P(T) = \frac{5}{15}

Solving for P(S)

The question implies a probability without replacement;

Hence Total has now been reduced by 1

Total = 14

P(S) = \frac{n(S)}{Total}

P(S) = \frac{3}{14}

Recall that

P(T\ n\ S) = P(T) * P(S)

P(T\ n\ S) = \frac{5}{15} * \frac{3}{14}

P(T\ n\ S) = \frac{15}{15 * 14}

P(T\ n\ S) = \frac{1}{14}

Hence, the required probability is

P(T\ n\ S) = \frac{1}{14}

3 0
3 years ago
If you were to roll 2 cubes 120 times, how many times shoud you expect to roll a 10?
garri49 [273]

Answer:

about 90% of the time?

Step-by-step explanation:

5 0
3 years ago
What is the additive inverse of the complex number -8 + 3i?<br> -8-3i<br> -8+3i<br> 8-3i<br> 8+3i
Nady [450]
The answer is b because the answer is b and the people don’t know how to do it
8 0
3 years ago
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What is the property of yx7=7y
Artyom0805 [142]

Answer:

This is the commutative property of multiplication.

Step-by-step explanation:

This property states that we can multiply numbers in any order and still get the same number. Each side is the same operation in a different order.

5 0
3 years ago
What is the magnitude (size) of -5.8?
lilavasa [31]
The magnitude size of -5.8 is 5.8
magnitude size of a number is the number itself, and if it’s negative, it becomes its absolute value (in other words, you remove the subtraction sign).
3 0
3 years ago
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