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3 years ago

In the accompanying diagram PA is tangent to circle 0 at A if CN=12 and PB=4 what is the length of PA?

Mathematics

1 answer:

bogdanovich [222]3 years ago

4 0

576972840482626 is the email answer your welcome merry Christmas

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2 years ago

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a jar contains 2 red and 4 blue marbles. a marble is drawn from the jar. what is the probability that a red marble will be drawn

Lubov Fominskaja [6]

2 red / 4 blu

just semplify

1 red / 2 blu

so the probability is

1/2

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Scrat [10]

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D) 0.846

Step-by-step explanation:

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2 years ago

PLEASE HELP EASY MATH

Alexxx [7]

Answer:90

Step-by-step explanation:

When the sum of two angles is 90°, then the angles are known as complementary angles. In other words, if two angles add up to form a right angle, then these angles are referred to as complementary angles.

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3 years ago

The city of Madison regularly checks the quality of water at swimming beaches located on area lakes. Fifteen times the concentra

Maksim231197 [3]

Answer:

The sample standard deviation is 393.99

Step-by-step explanation:

The standard deviation of a sample can be calculated using the following formula:

$s=\sqrt[ ]{\frac{1}{N-1} \sum_{i=1}^{N}(x_{i}-{\displaystyle \textstyle {\bar {x}}}) ^{2} }$

Where:

$s=$ Sample standart deviation

$N=$ Number of observations in the sample

${\displaystyle \textstyle {\bar {x}}}=$ Mean value of the sample

and $\sum_{i=1}^{N}(x_{i}-{\displaystyle \textstyle {\bar {x}}}) ^{2} }$ simbolizes the addition of the square of the difference between each observation and the mean value of the sample.