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1 year ago

A straight line with the equation y=ax-3 goes through the point (2,11). Work out the value of a

Mathematics

1 answer:

Rzqust [24]1 year ago

4 0

The value a is 7.

<h3>What is Straight Line?</h3>

A line is simply an object in geometry that is characterized under zero width object that extends on both sides. A straight line is just a line with no curves.

Here, the given equation of line

y = ax -3

line passing through point (2, 11), then

11 = a X 2 - 3

11 + 3 = 2a

2a = 14

a = 7

Thus, the value a is 7.

Learn more about Straight line from:

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a. 0.12109

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c .0.9726

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Number of picks = 2

a) If the first container is defective, there 7 defective containers left in a population of 579. The probability of selecting a defective one is:

$P=\frac{7}{579}=0.121$

b) The probability that both are defective is given by:

$P=\frac{8}{580}*\frac{7}{579}= 0.000167$

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$P=\frac{580-8}{580}*\frac{579-8}{579}= 0.9726$

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