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Lunna [17]
3 years ago
8

Identify the ordered pair that represents the vector from a(-9,9) to b(7,3) and the magnitude of ab.

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Answer:

Answers below

Step-by-step explanation:

1. Order pair method

[(x2-x1) , (y2-y1)] = b-a = [(7--9) , (3-9)] = (16,-6)

2. Magnitude

|v| = \sqrt{16^2+-6^2}

v = |17.088|

KatRina [158]3 years ago
7 0

Answer:

B ON EDGE2021

Step-by-step explanation:

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Based on the tree diagram below, what is the probability that a student doesn't have lice, given that the student tested negativ
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Answer:

Option D (APEX)

Step-by-step explanation:

L= Student has lice

NL= Student has no lice

PT=Test Shows positive

NT=Test Shows negative

P(\frac{NT}{NL}) =0.7708 (Probability that a student has no lice and the test shows negative)

P(\frac{NT}{L}) = 0.0108 ( Probability that a student has lice and the test shows negative)

  1. P\frac{NT}{NL} = \frac{P\frac{NT}{NL} }{P\frac{NT}{NL} +P\frac{NT}{L} }
  2. \frac{0.7708}{0.7708+00108}
  3. \frac{0.7708}{0.7816}
  4. 0.98618219 (Simplify)

<u> Terms Of Percentages</u>

0.98618219 × 100

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Therefore your answer is 98.6% (Option D)

APEX

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