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Andru [333]
3 years ago
13

Multiple choice. You take a quiz with 6 multiple-choice questions. After you studied, you estimated that you would have about an

80% chance of getting any individual question right. What are your chances of getting them all right
Mathematics
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer:

.262144, or about 26%

Step-by-step explanation:

Use what people call the Multiplication Principle.  If there are two independent events--the outcome of one does not affect the outcome of the other--multiply their probabilities to find the probability of both occurring.

The questions are independent -- answering one question does not affect the answer to any other question.

The chance of answering all 6 questions correctly is

(.8)\times(.8)\times(.8)\times(.8)\times(.8)\times(.8)=(.8)^6

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Find the midpoint of the segment whose endpoints are (8,6) and (-2,-8).
inna [77]

Answer:

\huge{ \fbox{ \sf{ \: ( \: 3 \: ,  \:  - 1 \: )}}}

Step-by-step explanation:

\star{ \sf { \: Let \: the \: points \:be \: A \: and \: B}}

\star{ \sf{ \: Let \: \: A (8,6) \: be \: (x1 \:, y1) and  \: B(-2,-8) \: be \: (x2 \:, y2)}}

\underline{ \sf{Finding \: the \: midpoint}}

\boxed{ \rm{Midpoint \:  =  \: ( \frac{x1 + x2}{2}  \: ,  \:  \frac{y1 + y2}{2} )}}

\mapsto{ \sf{Midpoint = ( \frac{8 + ( - 2)}{2}  \: ,  \:  \frac{6 + ( - 8)}{2} )}}

\mapsto { \sf{Midpoint = ( \frac{8 - 2}{2}  \: ,  \:  \frac{6 - 8}{2} }})

\mapsto{ \sf{Midpoint = ( \frac{6}{2}  \: ,  \:  \frac{ - 2}{2}) }}

\mapsto{ \sf{Midpoint = (3 \: \:  ,   - 1)}}

Hope I helped!

Best wishes!! :D

~\sf{TheAnimeGirl}

5 0
3 years ago
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