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4 years ago

What is the distance between point R (−1, 7) and point T (−7, 7) ?

Mathematics

1 answer:

Slav-nsk [51]4 years ago

8 0

Answer:

Step-by-step explanation:

distance = √(x₂-x₁)² + (y₂-y₁)²

= √(-1 - [-7] )² + (7 -7)² =√(-1 +7 )² +0

= √ (6)² = 6 units

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anyanavicka [17]

Answer:

$E(x) = 99$

Step-by-step explanation:

Given

The attached table

Required

Number of times 3 or 4 will occur

First, we complete the table as follows:

$P(1) + P(2) +......+P(6) =1$

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Collect Like Terms

$P(3)= 1 -(0.13 + 0.05 + 0.21 + 0.19 + 0.3 )$

$P(3)= 0.12$

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$E(x)= n * P(x)$

So, we have:

$E(x) = 300 * (0.12 + 0.21)$

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3 years ago

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3 years ago

What is 63 and 70 as a ratio in math

melomori [17]

Answer:

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Step-by-step explanation:

First the ratio will be 63 : 70

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