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3 years ago

The prefix octa-means what?

Mathematics

2 answers:

iren [92.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

It means 8 .

For example an octagon is an eight-sided polygon.

The octal system is a number system based on 8.

yuradex [85]3 years ago

3 0

The prefix means 8.How to remember this is a octagon which has 8 sides.Therefore Octa means eight.I hope this helped.

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I need help!! what are all number less than or equal to 22 and greater than -4

katrin2010 [14]

Answer:

22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3

Step-by-step explanation:

I don't know if you wanted me to list them but here, I hope this helps

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3 years ago

What is Limit of StartFraction x cubed minus 1 Over x minus 1 EndFraction as x approaches 1?

krok68 [10]

Answer:

It's C, 3

Step-by-step explanation:

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3 years ago

An article in USA Today stated that Internal surveys paid for by directory assistance providers show that even the most accurate

MariettaO [177]

Answer:

a. 11.26 % b. 6.76 %. It appears so since 6.76 % ≠ 15 %

Step-by-step explanation:

a. This is a binomial probability.

Let q = probability of giving out wrong number = 15 % = 0.15

p = probability of not giving out wrong number = 1 - q = 1 - 0.15 = 0.75

For a binomial probability, P(x) = ⁿCₓqˣpⁿ⁻ˣ. With n = 10 and x = 1, the probability of getting a number wrong P(x = 1) = ¹⁰C₁q¹p¹⁰⁻¹

= 10(0.15)(0.75)⁹

= 1.5(0.0751)

= 0.1126

= 11.26 %

b. At most one wrong is P(x ≤ 1) = P(0) + P(1)

= ¹⁰C₀q⁰p¹⁰⁻⁰ + ¹⁰C₁q¹p¹⁰⁻¹

= 1 × 1 × (0.75)¹⁰ + 10(0.15)(0.75)⁹

= 0.0563 + 0.01126

= 0.06756

= 6.756 %

≅ 6.76 %

Since the probability of at most one wrong number i got P(x ≤ 1) = 6.76 % ≠ 15 % the original probability of at most one are not equal, it thus appears that the original probability of 15 % is wrong.

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3 years ago

These expressions represent four numbers. The value of the median of the expressions is 12.

musickatia [10]

Answer:

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1 year ago

Read 2 more answers

A television network is about to telecast a new television show. Before a show is launched, the network airs a pilot episode and

Basile [38]

Answer:

(E) 0.83

Step-by-step explanation:

We will solve it using conditional probability.

Let A be the event that a TV show is successful.

P(A) = 0.5

A' be event that the show is unsuccessful

P(A') =0.5

Let B be the event that the response was favorable

P(B) = 0.6

Let B' be the event that the response was unfavorable/

P(B') = 0.4

P(A∩B) = 0.5 and P(A∩B') = 0.3

We need to find new show will be successful if it receives a favorable response.

P(A/B) = $\frac{P(A∩B)}{P(B)}$

= 0.5/0.6

= 0.833

7 0

3 years ago

Read 2 more answers